Merge branch 'dev' into vhs

Still not rebuilding on changes to $dir/$dir/$file.md.

Makefile

@@ -4,6 +4,8 @@ EDITOR ?= vi
 FZF != command -v sk || command -v fzy || command -v fzf || \
 	{ echo install a fuzzy finder && exit 1 ;}
 
+spill_contents = sed -e '1,/---/d'
+
 help: ## Print the help message
 	@awk 'BEGIN {FS = ":.*?## "} /^[0-9a-zA-Z._-]+:.*?## / {printf "\033[36m%s\033[0m : %s\n", $$1, $$2}' $(MAKEFILE_LIST) | \
 		sort | \
@@ -11,39 +13,47 @@ help: ## Print the help message
 
 articles != find * -type f -name "*.md"
 
-categories != ls -d */
+dirs != ls -d */
+categories = $(patsubst %/, %, $(dirs))
 
-databases = $(patsubst %/, .dbs/%.rec, $(categories))
+databases = $(patsubst %, .dbs/%.rec, $(categories))
 
 default += $(databases)
 
+$(foreach dir, $(categories), \
+	$(eval .dbs/$(dir).rec: $(wildcard $(dir)/*)) \
+	)
+
+.dbs/:
+	mkdir $@
 $(databases): .dbs/%.rec: %/ | .dbs/
 	$(info making $(@F))
-	@mkdir -p $(@D)
 	for entry in $(shell find $< -type f -name "*.md") ; do \
-		sed -n '2,/^---$$/ {/^---$$/d; p}' "$$entry" |\
-		sed -e 's/\[ //'  -e 's/ \]//' |\
-		tr -d '"' ;\
-		printf "wordcount: %s\n" "$$(wc -w < $$entry)" ;\
-		printf "file: %s\n\n" "$$entry" ;\
+		printf "file: %s\n" "$$entry" ;\
+		sed -n '2,/^---$$/ {/^---$$/d; p}' "$$entry"  |\
+		tr -d '[]' | tr -s ' ' |\
+		sed '/tags: /s/, /\ntag: /g ; s/tags:/tag:/ ; /requires/s/, /\nrequires: /g' ;\
+		printf "wordcount: %s\n\n" "$$(wc -w < $$entry)" ;\
 	done > $@
-	for entry in $(shell find $< -type f -name "*.md"); do \
-		recset $@ -e "file = '$${entry}'" -f wordcount --set-add="$$(wc -w < $${entry})" ;\
-	done
 
+# This two-variable read can only happen because of the quotes in the titles.
 db.rec: $(databases)
 	printf '%s\n' '%rec: guide' > $@
+	printf '%s\n' '%key: title' >> $@
+	printf '%s\n' '%type: requires rec guide' >> $@
+	printf '%s\n' '%type: provides rec guide' >> $@
 	printf '%s\n' '%type: wordcount int' >> $@
-	printf '%s\n\n' '%sort: title' >> $@
+	printf '%s\n\n' '%sort: wordcount' >> $@
 	cat $^ >> $@
 	recsel $@ -e "requires != ''" -CR title,requires |\
 	while read title requires; do \
-		IFS=', ' && for provider in $$requires; do \
+		for provider in "$$requires" ; do \
 			recset $@ -e "title = '$${provider}'" -f provides -a "$${title}" ;\
 		done ;\
 	done
-	$(info Created main database: $@)
+	sed -i 's/"//g' $@
 	recfix --sort $@
+	$(info Created main database: $@)
 
 default += db.rec
 
@@ -62,7 +72,7 @@ article: ## Write an article
 	filename="$$(echo "$$title" | tr '[:upper:]' '[:lower:]' | tr ' ' '_')" ;\
 	printf '%s\n' '---' >> $$path/$$filename.md ;\
 	printf 'title: "%s"\n' "$$title" >> $$path/$$filename.md ;\
-	printf 'tags: [ "%s" ]\n' "$$path" | sed 's#\/#", "#g' >> $$path/$$filename.md ;\
+	printf 'tags: [ "%s" ]\n' "$$path" | tr '[:upper:]' '[:lower:]' | sed 's#\/#", "#g' >> $$path/$$filename.md ;\
 	printf '%s\n\n' '---' >> $$path/$$filename.md ;\
 	$(EDITOR) +5 "$$path/$$filename.md"
 

README.md

@@ -4,22 +4,29 @@ title: "Linux Knowledge Base"
 
 The Linux Knowledge-Base provides quick-start guides for working with terminal programs.
 
+If you like this style of short articles with a miniature database, then join me in my quest to remove the nausea of poorly-written documentation.
+
 # Setup
 
 Install `make`, `recutils`, and any fuzzy-finder (i.e. `sk`, `fzy`, or `fzf`).
 
 ## Usage
 
+Set up the database and try a few queries:
 
 ```sh
 make
 make database
 
+recsel db.rec -m 3
 recsel db.rec -q database
-recsel db.rec -q gpg
 recsel db.rec -e "title = 'ssh'"
 recsel db.rec -e "title ~ 'ssh'"
 recsel db.rec -e "title ~ 'bash'" -R title,wordcount
+
+recsel db.rec -t guide -j provides -G title \
+    -e "title = 'ssh'" \
+    -p 'sum(provides_wordcount)'
 ```
 
 # Style
@@ -29,6 +36,16 @@ recsel db.rec -e "title ~ 'bash'" -R title,wordcount
 - Nobody cares about how the project started.
 - Nobody wants to read what `ffmpeg` is, because anyone who wants to use it already knows what it is.
 
+## State Knowledge Dependencies
+
+Articles should state what you need to understand in order to read them *at the start*.
+They should not assume the reader knows much beyond common terminal commands, and should not provide a link to some other resource half-way through an article.
+
+People should be able to read an article from the beginning, then keep going until the end, and then stop.
+Articles should not take a detour through a chain of other articles of unknown size.
+
+[Do not Jaquays documentation](https://splint.rs/posts/no_links)
+
 ## Be Opinionated
 
 - Guides should not ask the reader to select options half-way through.
@@ -73,6 +90,11 @@ grep ls --color=always $HISTFILE | $PAGER
 
 Now we can see what can be changed.
 
+## Assume People Follow the Instructions
+
+Articles should say what to type, not the output.
+If the command is `ls`, users will see files once they try the command, but the article does not need to provide an example list of files unless an important point has to be made about output.
+
 # What's Wrong with Everything Else?
 
 ## Man pages

basics/at.md

@@ -1,6 +1,6 @@
 ---
 title: "at"
-tags: [ "Basics", "time" ]
+tags: [ "basics", "time" ]
 ---
 Install with:
 
@@ -64,6 +64,8 @@ atrm 2
 
 Check `/var/spool/atd/` to see the jobs.
 
+![At it again](/tapes/at.gif)
+
 ## Automation
 
 Automatically add a job for later, by setting the date, then using echo for the command.

basics/at.tape

@@ -0,0 +1,42 @@
+Require at
+Require atd
+Sleep 500ms
+Type "at teatime"
+Enter
+Sleep 1.5s
+Type "./"
+Sleep 500ms
+Type "baskup.sh"
+Sleep 1.5s
+Enter
+Sleep 1.5s
+Ctrl+D
+Sleep 3.5s
+Type "atq"
+Enter
+Sleep 1.5s
+Type "atq 1"
+Sleep 500ms
+Type "4"
+Enter
+Sleep 500ms
+Type "at"
+Sleep 1s
+Type " -c 15"
+Enter
+Sleep 1.5s
+Type "at"
+Sleep 500ms
+Type " "
+Sleep 500ms
+Type "-"
+Sleep 500ms
+Type "c 15 | grep PWD"
+Enter
+Sleep 5.5s
+Type "atrm 15"
+Sleep 2s
+Enter
+Sleep 3s
+Ctrl+D
+

basics/basics.md

@@ -1,6 +1,6 @@
 ---
 title: "Basics"
-tags: [ "Basics" ]
+tags: [ "basics" ]
 ---
 
 You need about a dozen commands to move around Linux.

basics/clock.md

@@ -1,6 +1,6 @@
 ---
 title: "clock"
-tags: [ "Basics", "time" ]
+tags: [ "basics", "time" ]
 ---
 
 Show system time:

basics/conditionals.md

@@ -1,6 +1,6 @@
 ---
 title: "conditionals"
-tags: [ "Basics" ]
+tags: [ "basics" ]
 ---
 # If statements
 

basics/cron.md

@@ -1,6 +1,6 @@
 ---
 title: "cron"
-tags: [ "Basics", "time" ]
+tags: [ "basics", "time" ]
 ---
 # Cronie
 

basics/games.md

@@ -1,6 +1,6 @@
 ---
 title: "bash games"
-tags: [ "Games" ]
+tags: [ "games" ]
 ---
 
 Games are a great way to learn bash.

basics/kernel.md

@@ -1,34 +0,0 @@
----
-title: "kernel"
-tags: [ "Basics" ]
----
-## Living Space
-
-Kernel modules live in lib/modules/$(uname -r)
-
-## Change
-
-Load them with
-
-```bash
-sudo modprobe ath9k
-```
-
-Or remove one with
-
-```bash
-sudo modprove uvcvideo
-```
-
-The PC's irritating speaker beep can be really annoying. Disable it with:
-
-```bash
-sudo modprobe -r pcspeaker
-```
-
-Permanently disable a module by blacklisting it in `/etc/modprobe.d`:
-
-```bash
-echo 'blacklist pcspkr' > /etc/modprobe.d/*nobeep*.conf
-```
-

basics/kill.md

@@ -1,6 +1,6 @@
 ---
 title: "kill"
-tags: [ "Basics" ]
+tags: [ "basics" ]
 ---
 
 If you want to kill a program in a graphical environment, open a terminal and type:

basics/locale.md

@@ -1,6 +1,6 @@
 ---
 title: "locale"
-tags: [ "Basics", "time" ]
+tags: [ "basics", "time" ]
 ---
 
 Your locale tells the computer your location, preferred time-and-date format, standard language, papersize, et c.

basics/locating.md

@@ -1,6 +1,6 @@
 ---
 title: "locating"
-tags: [ "Basics" ]
+tags: [ "basics" ]
 ---
 # Type
 
@@ -13,6 +13,8 @@ type -P ls
 type -a cat
 ```
 
+![where is cmus?](/tapes/which.gif)
+
 # Whereis the Program
 
 Where is `grep` and all its configuration files?

basics/processes.md

@@ -1,6 +1,6 @@
 ---
 title: "processes"
-tags: [ "Basics" ]
+tags: [ "basics" ]
 ---
 # Proccesses
 

basics/time.md

@@ -1,6 +1,6 @@
 ---
 title: "time"
-tags: [ "Basics", "time" ]
+tags: [ "basics", "time" ]
 ---
 # systemd
 
@@ -56,7 +56,7 @@ Then set that language, with:
 LANG=pl_PL.UTF-8
 ```
 
-... then reboot.
+...then reboot.
 
 # Network Time Protocol
 

basics/users.md

@@ -1,6 +1,6 @@
 ---
 title: "users"
-tags: [ "Basics" ]
+tags: [ "basics" ]
 ---
 # Basic Information
 

basics/which.tape

@@ -0,0 +1,33 @@
+Require cmus
+
+Type "whereis cmus"
+Enter
+Sleep 1s
+Type "which cmus"
+Enter
+Sleep 500ms
+Type "type /bin/cmus"
+Enter
+Sleep 5s
+Type "man cmus"
+Enter
+Sleep 1s
+Type " "
+Sleep 1s
+Type " "
+Sleep 1s
+Type " "
+Sleep 500ms
+Type " "
+Sleep 1.5s
+Type " "
+Sleep 500ms
+Type " "
+Sleep 1.5s
+Type " "
+Sleep 500ms
+Type " q"
+Sleep 500ms
+Type "cmus"
+Sleep 3s
+Ctrl+D

chat/profanity.md

@@ -1,6 +1,6 @@
 ---
 title: "profanity"
-tags: [ "Chat", "omemo" ]
+tags: [ "chat", "omemo" ]
 ---
 # Setup (Commands)
 
@@ -142,4 +142,3 @@ You can ensure omemo automatcally turns on:
 ```
 ---
 
-'OTR' encryption is mostly dead, but you can find the old instructions [here](profanity-otr).

chat/wgetpaste.md

@@ -1,6 +1,6 @@
 ---
 title: "wgetpaste"
-tags: [ "Chat" ]
+tags: [ "chat" ]
 ---
 
 See available pastebins:

data/backups/archives.md

@@ -8,22 +8,21 @@ tags: [ "tar", "backups", ".tgz", "tar.gz" ]
 
 Combine many files and directories into a single t-archive file.
 
-```bash
+```sh
 tar cf "$ARCHIVE".tar $DIR
 ```
 You can remember this with the mnemonic '*C*reate *F*ile'.
 
-Unfortunately, this stores the full file path, so making a tar archive of `/etc/nginx/` will store `etc/nginx` (without the leading `/`.
-
+Unfortunately, this stores the full file path, so making a tar archive of `/etc/nginx/` will store `etc/nginx` (without the leading `/`).
 It's often better to tell tar which path to start from using the `-C` flag.
 
-```bash
+```sh
 tar cf "$ARCHIVE".tar -C /etc/ nginx
 ```
 
 Check the contents of your archive with:
 
-```bash
+```sh
 tar tf "$ARCHIVE".tar
 ```
 
@@ -31,7 +30,7 @@ If you want to store 'everything in a directory', then using `*` will not work,
 
 Instead, you can store the target in a variable:
 
-```bash
+```sh
 files=$(ls /etc/nginx)
 tar cf "$ARCHIVE".tar -C /etc/nginx/ $file
 ```
@@ -40,7 +39,9 @@ tar cf "$ARCHIVE".tar -C /etc/nginx/ $file
 
 Extract the tar archive with
 
-> tar xf "$ARCHIVE".tar
+```sh
+tar xf "$ARCHIVE".tar
+```
 
 You can remember this with the mnemonic 'e*X*tract *F*ile'.
 
@@ -48,7 +49,7 @@ You can remember this with the mnemonic 'e*X*tract *F*ile'.
 
 Create a zip-compressed archive with the `z` flag.
 
-```bash
+```sh
 tar czf "$ARCHIVE".tgz -C /etc/nginx/ $file
 ```
 
@@ -60,18 +61,16 @@ You can use any file ending you want, but sane people like to use '.tgz' or '.ta
 
 Make archive:
 
-```bash
-PASSWORD=my_password
-```
-```bash
-7za a -tzip -p$PASSWORD -mem=AES256 $ARCHIVE.zip $FILE_1 $FILE_2
+```sh
+7za a -tzip -p "$PASSWORD" -mem=AES256 $ARCHIVE.zip $FILE_1 $FILE_2
 ```
+
 Note that people can still see every filename in your archive, and can change those files.
 They just can't read the contents.
 
 Unzip:
 
-```bash
+```sh
 7za x archive.zip
 ```
 

data/backups/unison.md

@@ -1,11 +1,11 @@
 ---
 title: "unison"
-tags: [ "Backups", "synch" ]
+tags: [ "backups", "synch" ]
 ---
 
 Install unison on both machines, and make sure both have the same version of unison, with the same version of the ocaml compiler (the smallest difference will cause problems).
 
-```bash
+```sh
 unison -version
 ```
 
@@ -13,14 +13,14 @@ Create the `~/.unison` directory on both machines.
 
 Make a job called `backup`:
 
-```bash
+```sh
 JOB=backup
 ```
 
 Here is an example job, which synchronizes the `~/music` directory with a remote machine which has the same username.
 
 
-```bash
+```sh
 echo "
 auto = true
 root=$HOME
@@ -42,7 +42,7 @@ The last command means it will ignore any file with a name ending in `.flac`.
 The first command means this will run but also confirm which files will be deleted, and which will be transferred, us `batch = true` instead.
 Or you can deleted that line in the `.prf` file and run it with a flag:
 
-```bash
+```sh
 unison -batch *backup*.prf
 ```
 

data/base_16.md

@@ -3,6 +3,24 @@ title: "Base 16"
 tags: [ "data" ]
 ---
 
-```bash
+Base 16 numbers often use `0x` at the start, so '10' just means '10', but `0x10` means '10 in base 16' which means '16'.
+
+For small numbers, use `printf`.
+
+```sh
 printf "%x" $NUMBER
 ```
+
+For any number, use `bc`.
+
+
+```sh
+fortune | md5sum  | cut -d' ' -f1 | tr [:lower:] [:upper:] | bc
+```
+
+- Inputting base 16 uses `ibase=16`.
+- Outputting base 10 uses `ibase=10`
+
+```sh
+echo 'ibase=16;' $(echo cbb478ac825f0dce7671254be035d0bc | tr [:lower:] [:upper:]) | bc
+```

data/git/basics.md

@@ -6,41 +6,40 @@ tags: [ "data" ]
 
 ## New Machines
 
-```bash
+```sh
 git config --global user.email "$YOUR_EMAIL"
 ```
 
-```bash
+```sh
 git config --global user.name "$YOUR_NAME"
 ```
 
 # New Git
 
-Start a git in directory `$DIR`:
+Decide on algorithm:
 
-```bash
-mkdir $DIR && cd $DIR
+- If you're scared of insecure hash-sums, go with `hash=sha256`.
+- If you don't know what a hash sum is, go with `hash=sha1`.
+
+## Init the Git
+
+Start a git in directory `${DIR}`:
+
+```sh
+git init --object-format=${hash} ${DIR}
+cd ${DIR}
 ```
 
-```bash
-git init
-```
+Make a file explaining what the project does, and tell `git` to track it:
 
-Make a file explaining what the project does:
-
-```bash
-vim README.md
-```
-
-Add this to the git:
-
-```bash
+```sh
+echo "I hereby solemnly swear never to commit a binary file." > README.md
 git add README.md
 ```
 
 Then make the initial commit, explaining the change you just made:
 
-```bash
+```sh
 git commit
 ```
 
@@ -48,17 +47,17 @@ git commit
 
 Once you make a change to some file, add it and make a commit explaining it.
 
-```bash
+```sh
 git add $FILE
 ```
 
-```bash
+```sh
 git commit -m"change $FILE"
 ```
 
 Check your history:
 
-```bash
+```sh
 git log
 ```
 
@@ -69,20 +68,20 @@ Give it the same name as the `$DIR` directory, above.
 
 Add this as a remote:
 
-```bash
+```sh
 REMOTE=gitlab
 git remote add $REMOTE  https://gitlab.com/$USERNAME/$DIR
 ```
 
 Tell git you're pushing the branch "master" to the remote repo "origin": 
 
-```bash
+```sh
 git push -u master origin
 ```
 
 If someone makes a change on the remote, pull it down with:
 
-```bash
+```sh
 git pull
 ```
 
@@ -91,31 +90,31 @@ git pull
 A branch is a full copy of the project to test additional ideas.
 You can make a new branch called 'featurez' like this:
 
-```bash
+```sh
 git branch $FEATURE_BRANCH
 ```
 
 Have a look at all your branches:
 
-```bash
+```sh
 git branch
 ```
 
 Switch to your new branch:
 
-```bash
+```sh
 git checkout $FEATURE_BRANCH
 ```
 
 And if your changes are rubbish, checkout the "master" branch again, then delete "featurez":
 
-```bash
+```sh
 git branch -D $FEATURE_BRANCH
 ```
 
 Or if it's a good branch, push it to the remote:
 
-```bash
+```sh
 remote=origin
 git push $remote $FEATURE_BRANCH
 ```
@@ -124,13 +123,13 @@ git push $remote $FEATURE_BRANCH
 
 Once you like the feature, merge it into the main branch.  Switch to master then merge it:
 
-```bash
+```sh
 git merge $FEATURE_BRANCH
 ```
 
 And delete the branch, as you've already merged it:
 
-```bash
+```sh
 git branch -d $FEATURE_BRANCH
 ```
 
@@ -138,7 +137,7 @@ git branch -d $FEATURE_BRANCH
 
 ## Pulling another git repo into a subtree
 
-```bash
+```sh
 git subtree add -P config git@gitlab.com:bindrpg/config.git master
 ```
 
@@ -146,27 +145,27 @@ git subtree add -P config git@gitlab.com:bindrpg/config.git master
 
 ## Delete All History
 
-```bash
+```sh
 git checkout --orphan temp
 ```
 
-```bash
+```sh
 git add -A
 ```
 
-```bash
+```sh
 git commit -am "release the commits!"
 ```
 
-```bash
+```sh
 git branch -D master
 ```
 
-```bash
+```sh
 git branch -m master
 ```
 
-```bash
+```sh
 git push -f origin master
 ```
 
@@ -174,21 +173,21 @@ Gitlab requires more changes, such as going to `settings > repository` and switc
 
 ## Clean up Bloated Repo
 
-```bash
+```sh
 git fsck --full
 ```
 
-```bash
+```sh
 git gc --prune=now --aggressive
 ```
 
-```bash
+```sh
 git repack
 ```
 
 ## Find Binary Blobs
 
-```bash
+```sh
 git rev-list --objects --all \
 | git cat-file --batch-check='%(objecttype) %(objectname) %(objectsize) %(rest)' \
 | sed -n 's/^blob //p' \

data/git/commit_for_another.md

@@ -0,0 +1,22 @@
+---
+title: "Commit for Another"
+tags: [ "data", "git" ]
+---
+
+You can make Alice the author, while you are still the commiter:
+
+```sh
+name="Alice Bobinson"
+email="alice@email.com"
+
+git add ${file}
+git commit --author="${name} <${email}>"
+```
+
+Or, make Alice both the committer and the author:
+
+
+```sh
+git -c user.name="${name}" -c user.email="${email}" commit -m "${message}"
+```
+

data/git/subtree.md

@@ -1,5 +1,5 @@
 ---
-title: "git"
+title: "git subtree"
 tags: [ "data", "git", "subtree" ]
 ---
 

data/gpg/extras.md

@@ -1,5 +1,5 @@
 ---
-title: "gpg"
+title: "gpg with vim"
 tags: [ "vim", "data", "GPG" ]
 requires: [ "GPG Basics", "vim basics" ]
 ---

data/interactive_string_substitution.md

@@ -0,0 +1,19 @@
+---
+title: "Interactive String Substitution"
+tags: [ "data", "vim", "substitution" ]
+---
+
+Want to find and replace, but also confirm each instance?
+
+```sh
+vim -c "%s/${pattern}/${replacement}/gc" -c 'wq' ${file}
+```
+
+Notice that double-quotes (`"`) in the first command (`-c`).
+
+Alternatively, check with an example string:
+
+
+```sh
+sed "s/${pattern}/ARGLEBARGLE/g" ${file} | grep 'ARGLEBARGLE'
+```

data/khard.md

@@ -1,6 +1,6 @@
 ---
 title: "khard"
-tags: [ "Data" ]
+tags: [ "data" ]
 ---
 Get the basic config:
 

data/pdf_erasure.md

@@ -1,6 +1,6 @@
 ---
 title: "PDF Metadata Erasure"
-tags: [ "Metadata", "Ghost Script", "gs", ".pdf" ]
+tags: [ "metadata", "ghost script", "gs", ".pdf" ]
 ---
 
 You cannot erase pdf metadata with `exiftool` (it only *appends* your changes).

data/radicale.md

@@ -1,6 +1,7 @@
 ---
 title: "radicale and nginx"
 tags: [ "data", "calendar" ]
+requires: [ "nginx", "certbot" ]
 ---
 
 Check before you start:

data/recfiles.md

@@ -44,9 +44,13 @@ recset -f "$new_field" --delete $database
 
 - [Extended example](recfiles/extended.md)
 - [Playing with board games data](recfiles/Board_Games.md)
+- [Playing with IP addresses](recfiles/IP_ASN.md)
+- [Manage LaTeX Bibliographies](recfiles/bibliography.md)
 - [Fixes](recfiles/recfixes.md)
 
 # Resources
 
 - [Recfiles for gemini capsules](gemini://tilde.town/~dozens/gemlog/21.gmi)
 
+
+![Recfiles](/tapes/recfiles.gif)

data/recfiles/IP_ASN.md

@@ -0,0 +1,16 @@
+---
+title: "IP Addresses with Recfiles"
+tags: [ "data", "recfiles", "games" ]
+requires: "Recfiles"
+---
+
+## Download the Database
+
+Download the csv data, and separate the ipv4 data from the ipv6.
+
+```sh
+curl -Lo ips.zip 'https://www.kaggle.com/api/v1/datasets/download/ipinfo/ipinfo-country-asn'
+unzip -p ips.zip country_asn.csv | csv2rec | recsel -e "start_ip ~ '\.'"  > ipv4.rec
+unzip -p ips.zip country_asn.csv | csv2rec | recsel -e "start_ip ~ '::'"  > ipv6.rec
+```
+

data/recfiles/bibliography.md

@@ -0,0 +1,121 @@
+---
+title: "Recfile Bibliography for TeX"
+tags: [ "data", "database", "recfiles", "tex" ]
+requires: [ "Recfiles", "TeX", "Makefile" ]
+---
+
+Store your bibliography in a `recfile` database, then extract any part with `make`.
+
+For example, you could store books like this in `bibliography.rec`:
+
+```recfile
+%rec: book
+%key: slug
+
+slug: thinkingexperience
+author: H. H. Price
+title: Thinking and Experience
+year: 1953
+publisher: Harvard University Press, Cambridge
+
+slug: inventingrightwrong
+author: John Leslie Mackie
+title: Inventing Right and Wrong
+year: 1997
+publisher: Penguin Books, England
+
+```
+
+Run `make book` to extract `book.bib`, ready for LaTeX to use:
+
+```bib
+@book{thinkingexperience,
+   author = {H. H. Price},
+   title = {Thinking and Experience},
+   year = {1953},
+   publisher = {Harvard University Press, Cambridge},
+}
+
+@book{inventingrightwrong,
+   author = {John Leslie Mackie},
+   title = {Inventing Right and Wrong},
+   year = {1997},
+   publisher = {Penguin Books, England},
+}
+```
+
+The `makefile` syntax is just a few lines (though admittedly employs some garbled shell-crud):
+
+```make
+bibs != grep -Po '%rec: \K.*' bibliography.rec
+bibfiles = $(patsubst %, %.bib, $(bibs))
+
+$(bibfiles): %.bib: bibliography.rec
+	recsel $< -t $(basename $@) |\
+		sed 's/slug: \(.*\)/@$(basename $@){\1,/g' |\
+		sed 's/^\(\b.*\b\): \(.*\)/   \1 = {\2},/gI' |\
+		sed 's/^$$/}\n/g' > $@
+		echo '}' >> $@
+```
+
+Here's a longer `bibliography.rec` file, which can also produce `article.bib`:
+
+```recfile
+%rec: book
+%key: slug
+%type: year int
+%constraint: year > -2000
+%sort: year month
+
+slug: thinkingexperience
+author: H. H. Price
+title: Thinking and Experience
+year: 1953
+publisher: Harvard University Press, Cambridge
+
+slug: inventingrightwrong
+author: John Leslie Mackie
+title: Inventing Right and Wrong
+year: 1997
+publisher: Penguin Books, England
+
+slug: metaphysicscontemporaryintro
+author: Michael J. Loux
+title: Metaphysics: A Contemporary Introduction
+year: 1998
+publisher: Routledge, London
+
+slug: pluralityworlds
+author: David Lewis
+title: On the Plurality of Worlds
+publisher: Blackwell Publishing, Oxford
+year: 2001
+
+%rec: article
+%key: slug
+%sort: year month
+
+slug: genuinerealisttheory
+author: John Divers
+title: A Genuine Realist Theory of Advanced Modalizing
+year: 1999
+pages: 217–240
+month: april
+journaltitle: Mind
+uri: https://academic.oup.com/mind/article-abstract/108/430/217/975258?redirectedFrom=fulltext
+volume: 108
+publisher: Harvard University Press, Cambridge
+
+slug: twokindsmentalrealism
+author: Tam\'{a}s Demeter
+title: Two Kinds of Mental Realism
+year: 2009
+pages: 40:59-71
+uri: https://www.researchgate.net/profile/Tamas_Demeter2/publication/41554923_Two_Kinds_of_Mental_Realism/links/0deec53247f5a4ae21000000.pdf
+month: august
+journaltitle: Journal for General Philosophy of Science
+volume: 30
+publisher: Harvard University Press, Cambridge
+
+```
+

data/recfiles/recfiles.tape

@@ -0,0 +1,68 @@
+Require recins
+
+Set Shell "bash"
+Set TypingSpeed 0.1
+Set FontSize 25
+Set Width 900
+Set Height 700
+
+Enter
+Type "touch games.rec"
+Enter
+
+Sleep 2s
+Type 'recins --record "Name: Vojvodina" games.rec'
+Enter
+Sleep 2s
+Type 'recsel games.rec'
+Enter
+
+Sleep 2s
+
+Type 'for g in Saboter Carcassonne Chess; do recins -r "Name: $g" games.rec; done'
+Enter
+Type 'recsel games.rec'
+Enter
+Sleep 2s
+Type 'cat games.rec'
+Enter
+Sleep 1s
+
+Type 'recsel --quick=Carc games.rec'
+Enter
+Type 'recsel -q Carc games.rec'
+Enter
+Sleep 2s
+
+Type 'recsel -q "sabot" --print=Name games.rec'
+Enter
+Sleep 1s
+Type 'recsel --case-insensitive -q "sabot" --print=Name games.rec'
+Enter
+Sleep 2s
+
+Type 'recsel -i -q "chess" -p Name games.rec'
+Enter
+Sleep 1s
+
+Type 'recset -f "Played" --set-add="no" games.rec'
+Enter
+Type 'recsel games.rec'
+Enter
+Sleep 1s
+
+Type 'recset -iq chess -f "Played" --set=yes games.rec'
+Enter
+Type 'recsel games.rec'
+Enter
+Sleep 1s
+
+Type 'recset -f "Played" --delete games.rec'
+Enter
+Type 'recsel games.rec'
+Enter
+
+Hide
+Type 'rm games.rec'
+Enter
+Sleep 3s

data/sc-im.md

@@ -1,6 +1,7 @@
 ---
 title: "sc-im"
 tags: [ "TUI", "data", "spreadsheet", ".csv" ]
+requires: [ "vim basics" ]
 ---
 
 - [Sample file](sc-im/sample.sc)
@@ -47,6 +48,7 @@ echo 'set autowrap' >> .config/sc-im/scimrc
 |:----------------------|:---:|
 | text (left align)     | <   |
 | text (right align)    | >   |
+| text (right align)    | `|` |
 | Edit existing  text   | E   |
 
 ### Meta Actions
@@ -61,6 +63,26 @@ echo 'set autowrap' >> .config/sc-im/scimrc
 |  paste with format    | Pc  |
 |  delete a cell        | x   |
 
+# Movement
+
+| Action                          | Key |
+|:-------------------------------:|:---:|
+| highest part                    | H   |
+| lowest part                     | L   |
+| top                             | gg  |
+| move right                      | g$  |
+| move left                       |  g0 |
+| insert middle                   | \   |
+| insert left                     | \>  |
+| insert right                    | <   |
+| to to cell b4                   | b4  |
+| see all text in cells           | aa  |
+| format cells so you can see it. | f   |
+| format wider right              | fl  |
+| format smaller left             | fh  |
+| format wider down               | fj  |
+| format smaller down             | fk  |
+
 
 ### Functions
 

data/sc-im/convert_spreadsheets.md

@@ -0,0 +1,13 @@
+---
+title: "Convert Spreadsheets"
+tags: [ "data", "sc-im" ]
+---
+
+Convert between spreadsheet formats with `sc-im`.
+
+```sh
+sc-im --quiet --quit_afterload --nocurses --export_csv ${file}.xlsx
+sc-im --quiet --quit_afterload --nocurses --export_tab ${file}.sc
+sc-im --quiet --quit_afterload --nocurses --export_mkd ${file}.csv
+sc-im --quiet --quit_afterload --nocurses --export_txt ${file}.tsv
+```

data/search_video_audio.md

@@ -0,0 +1,33 @@
+---
+title: "Search Video Audio"
+tags: [ "data", "video" ]
+---
+
+Check subtitles available:
+
+```sh
+url='https://videos.domainepublic.net/videos/watch/d9567d5b-1add-477c-bce3-a58cef84c28c'
+yt-dlp --list-subs "$url" | grep --max-count=1 '^en'
+```
+
+The original language often displays with  `-orig`, e.g. `en-orig (Original)`.
+
+```
+Language Formats
+ar       vtt
+az       vtt
+bg       vtt
+ca       vtt
+cs       vtt
+da       vtt
+de       vtt
+el       vtt
+en       vtt
+```
+
+Search youtube.com for videos on a topic, and download subtitles:
+
+```sh
+url="$(ytfzf -I l "$search" )" && \
+yt-dlp --write-subs --sub-format 'ass/srt/best/vtt' --sub-langs "en.*" --skip-download "$url"
+```

data/soft-serve/maintenance.md

@@ -0,0 +1,24 @@
+---
+title: "Soft Serve Maintenance"
+tags: [ "data", "git server", "maintenance" ]
+requires: [ "git", "nginx" ]
+---
+
+Over time git repositories become bloated with old data, but never get cleaned.
+I can't find an official way to clean up the crud, so I did this:
+
+```sh
+usermod -aG soft-serve $USER
+# Log out and back in for this to take effect.
+
+cd /var/lib/soft-serve/data/repos
+sudo chmod -R g+w *
+git config --global --add safe.directory '*'
+du -sh *.git
+for repo in *.git; do
+    git -C "$repo" gc
+done
+du -sh *.git
+$EDITOR ~/.gitconfig
+# You should remove having everything marked 'safe'.
+```

data/soft-serve/soft_https.md

@@ -1,6 +1,7 @@
 ---
 title: "Soft Serve through https"
 tags: [ "data", "git server", "lfs" ]
+requires: [ "git", "nginx" ]
 ---
 
 ## `http` Setup
@@ -33,7 +34,7 @@ Restart the `soft-serve` service, then check it's working by cloning from localh
 git clone http://localhost:23232/${some_repo}.git
 ```
 
-## `https` Setup
+### `https` Setup
 
 Put this file at `/etc/nginx/sites-enabled/$DOMAIN.tld`, then set up standard certificates with [nginx](../networking/website/nginx.md).
 
@@ -67,3 +68,4 @@ Put this file at `/etc/nginx/sites-enabled/$DOMAIN.tld`, then set up standard ce
 }
 
 ```
+

data/soft.md

@@ -0,0 +1,8 @@
+---
+title: "Soft-Serve"
+tags: [ "data", "git server", "lfs", "TUI" ]
+requires: [ "git", "nginx" ]
+---
+
+- [Soft-Serve with https](soft-serve/soft_https.md)
+- [Maintenance](soft-serve/maintenance.md)

data/task/contexts.md

@@ -0,0 +1,34 @@
+---
+title: "Taskwarrior Contexts"
+tags: [ "data", "task" ]
+requires: [ "Taskwarrior" ]
+---
+
+# Contexts
+
+Set three contexts by their tags:
+
+```sh
+task context define work +sa or +hr
+```
+
+```sh
+task context define study +ed or +void or +rat
+```
+
+```sh
+task context define home -sa -hr -ed -void -rat
+```
+
+Change to the first context.
+
+```sh
+task context work
+```
+
+Then stop.
+
+```sh
+task context none
+```
+

data/task/task.md

@@ -1,23 +1,35 @@
 ---
-title: "task"
-tags: [ "Organization" ]
+title: "Taskwarrior"
+tags: [ "data", "organization" ]
 ---
 
 Set up the configuration file:
 
-```bash
+```sh
 task
 ```
 
+Taskwarrior published a new feature to synchronize tasks others, but the feature was not ready.
+The server's default installation instructions assume that users pay for hosting services.
+All listed providers run proprietary software and actively support genocide.
+
+
+To ignore the synchronization, tell the configuration file to use a local synchronization file.
+
+```
+task config sync.local.server_dir
+task config data.location ~/.local/state/
+```
+
 Add a task:
 
-```bash
+```sh
 task add update linux
 ```
 
 See which task is next:
 
-```bash
+```sh
 task next
 ```
 
@@ -25,13 +37,13 @@ Note the id number.
 
 Mark a task as started:
 
-```bash
+```sh
 task start 1
 ```
 
 Once finished:
 
-```bash
+```sh
 task 1 done
 ```
 
@@ -39,23 +51,21 @@ task 1 done
 
 Add a project:
 
-```bash
+```sh
 task add project:house buy potted plant
 task add proj:house.repair buy screwdriver
 task add proj:house.repair buy shelf brackets
 task add pro:house.paint buy white paint
-task add pro:house.paint buy red paint
-task add pro:house.paint buy black paint
-task add pro:house.paint buy brushes
+
+for t in "buy red paint" "buy black paint" "buy brushes" ; do
+  task add pro:house.paint $t
+done
 ```
 
 ## Summary
 
-```bash
+```sh
 task pro:house sum
-```
-
-```bash
 task burndown.daily pro:house
 ```
 
@@ -63,69 +73,33 @@ The summaries will show how fast a project is being completed, and when you can
 
 # Tags
 
-```bash
+
+```sh
 task add +buy toothbrush
-```
-
-You can then see only tasks which involve buying something with:
-
-```bash
 task +buy
 ```
 
-# Contexts
-
-Set three contexts by their tags:
-
-```bash
-task context define work +sa or +hr
-```
-
-```bash
-task context define study +ed or +void or +rat
-```
-
-```bash
-task context define home -sa -hr -ed -void -rat
-```
-
-Change to the first context.
-
-```bash
-task context work
-```
-
-Then stop.
-
-```bash
-task context none
-```
-
 # Review
 
 View list of tasks completed in the last week:
 
-```bash
+```sh
 task end.after:today-1wk completed
 ```
 
 # User Defined Attributes
 
-Make a UDA 'size'.
+Define a new attribute for tasks called 'size'.
+The 'user defined attribute' (UDA) needs a `type` and `label`.
 
-```bash
+```sh
 task config uda.size.type string
-```
-
-```bash
 task config uda.size.label Size
 ```
+You can also ensure task tasks can only be `large`, `medium`, or `small`, then set a default.
 
-```bash
+```sh
 task config uda.size.values large,medium,small
-```
-
-```bash
 uda.size.default=medium
 ```
 
@@ -133,7 +107,7 @@ uda.size.default=medium
 
 This command shows tasks I'm most interested in:
 
-```bash
+```sh
 task next +ACTIVE or +OVERDUE or due:today or scheduled:today or pri:H
 ```
 

data/task/taskwarrior_configuration.md

@@ -0,0 +1,20 @@
+---
+title: "Taskwarrior Configuration"
+tags: [ "data", "task" ]
+requires: [ "Taskwarrior" ]
+---
+
+Show your current config:
+
+
+```sh
+task show
+```
+
+Use machine-readable output to make a config file with all configuration keys shown, then make it your configuration file.
+
+```sh
+task _show > ${file}
+mv ${file} ~/.config/task/taskrc
+```
+

data/task/timew.md

@@ -1,18 +1,18 @@
 ---
 title: "timewarrior"
-tags: [ "Data", "tracking", "time", "timew" ]
+tags: [ "data", "tracking", "time", "timew" ]
 ---
 # Summaries
 
 Try:
 
-```bash
+```sh
 timew summary :yesterday
 ```
 
 You can also use :week, :lastweek, :month, :quarter, :year, or a range such as:
 
-```bash
+```sh
 timew summary today to tomorrow
 timew today - tomorrow
 2018-10-15T06:00 - 2018-10-17T06:00
@@ -22,7 +22,7 @@ Each of these can gain with the :ids tag.
 
 # Basics
 
-```bash
+```sh
 timew start
 timew stop
 timew continue
@@ -32,7 +32,7 @@ timew tags
 
 And add ids with:
 
-```bash
+```sh
 timew summary :ids
 timew track 10am - 1pm timewarrior
 timew track 1pm for 2h walk
@@ -42,50 +42,50 @@ timew track 1pm for 2h walk
 
 First get ids.
 
-```bash
+```sh
 timew summary :ids
 ```
 
 Then if we're looking at task @2:
 
-```bash
+```sh
 timew move @2 12:00
 timew lengthen @2 3mins
 ```
 
-```bash
+```sh
 time shorten @2 40mins
 ```
 
 # Forgetting
 
-```bash
+```sh
 timew start 1h ago @4
 ```
 
 Or if your action actually had a break:
 
-```bash
+```sh
 timew split @8
 ```
 
 Or maybe not?
 
-```bash
+```sh
 timew join @4 @8
 timew @8 delete
 ```
 
 Start at previous time
 
-```bash
+```sh
 timew start 3pm 'Read chapter 12'
 timew start 90mins ago 'Read chapter 12'
 ```
 
 Cancel currently tracked time.
 
-```bash
+```sh
 timew cancel
 ```
 
@@ -157,11 +157,11 @@ with:
 
 # Fixing Errors
 
-```bash
+```sh
 curl -O https://taskwarrior.org/download/timew-dbcorrection.py
 ```
 
-```bash
+```sh
 python timew-dbcorrections.py
 ```
 

data/view_torrents.md

@@ -0,0 +1,11 @@
+---
+title: "View Torrents"
+tags: [ "data", "transmission", "torrenting" ]
+---
+
+
+```sh
+transmission-show $file.torrent  | less
+```
+
+`TRACKERS` shows where transmission will ask who has the torrent, but will probably be out of date.

data/w3m.md

@@ -19,3 +19,4 @@ w3m ddg.gg
 | T        | new tab              |
 | { / }    | switch tabs          |
 
+![w3m browser](/tapes/w3m.gif)

data/w3m.tape

@@ -0,0 +1,43 @@
+Require w3m
+
+Sleep 1s
+Type "w3m ddg.gg"
+Sleep 500ms
+Enter
+Sleep 1.5s
+Tab
+Enter
+Type "cats"
+Enter
+Sleep 2s
+Tab
+Enter
+Sleep 2s
+Type "jjjjjjjjjjjj"
+Tab
+Enter
+Sleep 2s
+Type "U"
+Sleep 500ms
+Ctrl+U
+Sleep 500ms
+Type "dmz.rs"
+Sleep 500ms
+Enter
+Sleep 4.5s
+Type "jjjjjjjj"
+Tab
+Type "j"
+Sleep 500ms
+Enter
+Sleep 1s
+Type " "
+Sleep 2s
+Backspace
+Sleep 500ms
+Type " "
+Sleep 1.5s
+Type " "
+Sleep 2s
+Type "qy"
+Sleep 500ms

distros/arch/autologin.md

@@ -1,6 +1,6 @@
 ---
 title: "autologin"
-tags: [ "Distros", "Arch" ]
+tags: [ "distros", "arch" ]
 ---
 
 # Automatic Login

distros/arch/gpu.md

@@ -1,6 +1,6 @@
 ---
-title: "fonts"
-tags: [ "distros" ]
+title: "Ach Linux GPU Setup"
+tags: [ "arch", "GPU" ]
 ---
 # Step 1: Multilib
 
@@ -60,4 +60,3 @@ You should see 'true' here.
 ```bash
 sudo pacman -S --needed lib32-mesa vulkan-radeon lib32-vulkan-radeon vulkan-icd-loader lib32-vulkan-icd-loader xf86-video-amdgpu
 ```
-

distros/void/aeroplanes.md

@@ -1,6 +1,6 @@
 ---
 title: "Aeroplane Mode in Void"
-tags: [ "Void" ]
+tags: [ "void" ]
 ---
 Put your device in 'aeroplane' mode (e.g. where no trace of signal leaves it) by turning off Wi-Fi and blue-tooth.
 
@@ -9,7 +9,7 @@ su root
 sv stop wpa_supplicant bluetoothd
 ```
 
-Find your device's name with `ip a`.
+Find your device's name with `ip -color addr`.
 If unsure, try this:
 
 ```sh

distros/void/autologin.md

@@ -1,6 +1,6 @@
 ---
 title: "Void Autologin"
-tags: [ "Void" ]
+tags: [ "void" ]
 ---
 
 Make the autologin service:

distros/void/extrace.md

@@ -1,6 +1,6 @@
 ---
 title: "extrace"
-tags: [ "Void" ]
+tags: [ "void" ]
 ---
 Monitor all processes:
 

distros/void/sv.md

@@ -1,6 +1,6 @@
 ---
 title: "sv"
-tags: [ "Void" ]
+tags: [ "void" ]
 ---
 # List Services
 

distros/void/void_basics.md

@@ -1,6 +1,6 @@
 ---
 title: "Void Linux Basics"
-tags: [ "Void" ]
+tags: [ "void" ]
 ---
 # Updates
 
@@ -57,5 +57,5 @@ brightnessctl s 10%+
 
 - [autologin](autologin.md)
 - [services](sv.md)
-- [wifi](wpa_cli.md)
+- [wifi](../../networking/wpa_supplicant.md)
 

distros/void/xbps-install.tape

@@ -0,0 +1,28 @@
+Require xbps-query
+Require xbps-install
+
+Set Shell "bash"
+Set FontSize 20
+Set Width 1400
+Set Height 900
+
+Type "sudo xbps-install --sync" Enter Sleep 700ms  Enter
+
+Type "sudo xbps-install --update --yes" Sleep 700ms
+
+Backspace 33
+
+Type "echo same but faster!" Sleep 200ms  Enter
+
+Type "sudo xbps-install -uy" Enter Sleep 700ms
+
+Type "echo now we just download" Sleep 2s  Enter
+
+Type "sudo xbps-install -SD --yes" Sleep 700ms Enter 
+
+Type "echo and install from the downloaded updates..." Sleep 2s  Enter
+
+Type "sudo xbps-install -Du" Sleep 700ms Enter 
+
+Sleep 4s
+

distros/void/xbps-query.tape

@@ -0,0 +1,64 @@
+Require xbps-query
+Require xbps-install
+
+Set Shell "bash"
+#Set FontSize 20
+#Set Width 1400
+#Set Height 900
+
+#Hide 
+#
+#Type "sudo xbps-remove -y cowsay xcowsay aerc"
+
+Show
+
+Type "xbps-query cows" Enter Sleep 1s
+
+Type "nothing..."
+
+Backspace 11
+
+Type "xbps-query --search cows" Sleep 500ms  Enter
+
+Type "xbps-query --repository --search cows" Sleep 500ms  Enter
+
+Type "echo same but faster!" Sleep 200ms  Enter
+
+Type "xbps-query -Rs cows" Sleep 500ms  Enter
+
+Sleep 3s
+
+Type "sudo xbps-install -y xcowsay" Enter Sleep 700ms  Enter
+
+Sleep 5
+
+Type "xbps-query --repository --search 'email'" Sleep 300ms Enter
+
+Type "too much...." Sleep 1s
+
+Backspace 13
+
+Sleep 1s
+
+Type "xbps-query -R --search '^email'" Sleep 300ms Enter
+
+Sleep 2s
+
+Type "xbps-query -Rs --regex '^email terminal'" Sleep 300ms Enter
+
+Type "???" Sleep 2s
+
+Backspace 3
+
+Sleep 3s
+
+Type "regex first!" Sleep 2s
+
+Backspace 12
+
+Type "xbps-query --regex -Rs '^email.*terminal'" Sleep 300ms Enter Sleep 900ms
+
+Type "xbps-query --regex -Rs '^terminal.*email'" Sleep 300ms Enter Sleep 900ms
+
+Type "sudo xbps-install aerc" Enter Sleep 300ms Enter Sleep 2s
+

distros/void/xbps-remove.tape

@@ -0,0 +1,28 @@
+Require xbps-query
+Require xbps-install
+
+Set Shell "bash"
+#Set FontSize 20
+#Set Width 1400
+#Set Height 900
+
+Type "sudo xbps-remove --yes thunderbird" Enter Sleep 2s
+
+Type "time to kill orphans" Sleep 600ms
+
+Backspace 21
+
+Enter
+
+Type "xbps-remove --remove-orphans --dry-run" Sleep 700ms 
+
+Backspace 38
+
+Enter
+
+Type "xbps-remove -on | cowsay" Sleep 300ms Enter Sleep 1.5s
+
+Type "sudo xbps-remove --yes -o" Sleep 700ms Enter
+
+Sleep 2s
+

distros/void/xbps.md

@@ -1,6 +1,6 @@
 ---
 title: "xbps"
-tags: [ "Void" ]
+tags: [ "void" ]
 ---
 ## Search
 
@@ -22,6 +22,8 @@ Search with regex:
 xbps-query --regex -Rs 'cow(s)?\w'
 ```
 
+![xbps searches](/tapes/xbps-query.gif)
+
 List what's required for cowsay
 
 ```bash
@@ -68,6 +70,8 @@ Upgrade current packages.
 xbps-install -Suv
 ```
 
+![xbps searches](/tapes/xbps-install.gif)
+
 ## Remove/ Uninstall
 
 Remove cowsay
@@ -90,6 +94,8 @@ xbps-remove -o
 
 Show information about cowsay
 
+![xbps searches](/tapes/xbps-remove.gif)
+
 ## Fixes
 
 Reinstall cowsay

hardware/keyboard.md

@@ -11,6 +11,7 @@ Select a keymap, and create a new custom map.
 
 ```sh
 su root
+ls /usr/share/kbd/keymaps/i386/qwerty/
 
 basemap=/usr/share/kbd/keymaps/i386/qwerty/pl1.map.gz
 newmap=/usr/share/kbd/keymaps/custom.map.gz

networking/bad_horse.md

@@ -0,0 +1,20 @@
+---
+title: "Mapping the Net"
+tags: [ "networking", "graph", "fun" ]
+---
+
+Find the path to a domain:
+
+```sh
+domain=bad.horse
+max_hops=50
+
+tracepath -m $maximum_hops $domain
+```
+
+If you're on Debian, you can use `graph-easy` and `dothost` to make an instant diagram:
+
+```sh
+domain=dice.camp
+dothost $domain | graph-easy --boxart
+```

networking/fail2ban.md

@@ -1,6 +1,6 @@
 ---
 title: "fail2ban"
-tags: [ "Networking" ]
+tags: [ "networking" ]
 requires: [ "ssh" ]
 ---
 # SSH Daemon Jail

networking/graph-easy.md

@@ -1,6 +1,6 @@
 ---
 title: "Easy Network Graph"
-tags: [ "Networking" ]
+tags: [ "networking" ]
 ---
 Set up a file like this, called `troubleshooting.txt`.
 

networking/iptables.md

@@ -1,6 +1,6 @@
 ---
 title: "iptables"
-tags: [ "Networking" ]
+tags: [ "networking" ]
 ---
 # Intro
 

networking/nmap.md

@@ -1,6 +1,6 @@
 ---
 title: "nmap"
-tags: [ "Networking" ]
+tags: [ "networking" ]
 ---
 
 Example:

networking/pi-hole-server.md

@@ -1,6 +1,6 @@
 ---
 title: "pi-hole-server"
-tags: [ "Distros" ]
+tags: [ "distros" ]
 ---
 # Installation
 

networking/port_scan.md

@@ -0,0 +1,25 @@
+---
+title: "Port Scan"
+tags: [ "networking" ]
+repo: 'https://github.com/mrjackwills/havn/'
+---
+
+`havn` scans ports.
+It's not in many repos, but if you can `cargo install havn`.
+
+
+```sh
+havn -h
+havn -a
+domain=splint.rs
+havn -p 19-90 ${domain}
+```
+
+That last command doesn't work reliably, so increase the number of retries (`-r`), or decrease concurrent requests (`-c`).
+
+
+```sh
+havn -p 19-443 -r 6 ${domain}
+havn -p 1-1000 -c 500 -r 5 ${domain}
+```
+

networking/rclone.md

@@ -1,6 +1,6 @@
 ---
 title: "rclone"
-tags: [ "Networking" ]
+tags: [ "networking", "synch" ]
 ---
 The manpage's 'Synopsis' provides a fast reference.
 ```

networking/scraping/youtube-dl.md

@@ -1,6 +1,6 @@
 ---
 title: "Download videos"
-tags: [ "Scraping" ]
+tags: [ "scraping" ]
 ---
 Install `yt-dlp`.
 

networking/servers/agate.md

@@ -1,6 +1,6 @@
 ---
 title: "Agate on Arch Linux"
-tags: [ "Networking", "Arch", "Gemini" ]
+tags: [ "networking", "arch", "gemini" ]
 ---
 
 Docs are [here](https://github.com/mbrubeck/agate).

networking/ssh.md

@@ -7,7 +7,7 @@ tags: [ "networking" ]
 Try out basic ssh by accessing `git.charm.sh`, without needing authentication:
 
 
-```bash
+```sh
 ssh git.charm.sh
 ```
 
@@ -16,32 +16,32 @@ The ssh server is sometimes in a package called `openssh`, and sometimes only in
 
 Once it's installed, check it's working:
 
-```bash
+```sh
 sudo systemctl status ssh
 ```
 
 If that doesn't work, the service may be called `sshd`.
 
-```bash
+```sh
 sudo systemctl status sshd
 ```
 
 Then start that service:
 
-```bash
+```sh
 sudo systemctl start sshd
 ```
 Test it works by using ssh into your own system, from inside:
 
 
-```bash
+```sh
 ssh $USER@localhost
 ```
 
 Access the computer from another computer on the same local network by finding your computer's IP address.
 
 
-```bash
+```sh
 ip address | grep inet
 ```
 
@@ -56,24 +56,24 @@ Here is mine:
 
 
 The first one starts `127`, which means it returns back to that computer (like `localhost`).
-The second is an ipv6 address, which is too angelic for this world, and has yet to ascend.
+The second is an ipv6 address, which is too angelic for this world, and has yet to descend.
 The third will work from a remote computer.
 
 
-```bash
+```sh
 ssh $USERNAME@IP_ADDRESS
 ```
 
 Once you have that, generate some ssh keys:
 
-```bash
+```sh
 ssh-keygen
 ```
 
 Look at your keys:
 
 
-```bash
+```sh
 ls ~/.ssh
 ```
 
@@ -82,7 +82,7 @@ The other is secret.
 
 Now send those keys to a remote computer:
 
-```bash
+```sh
 ssh-copy-id $USERNAME@IP_ADDRESS
 ```
 

networking/ssh/sshfs.md

@@ -1,6 +1,6 @@
 ---
 title: "sshfs"
-tags: [ "Networking" ]
+tags: [ "networking" ]
 requires: [ "ssh" ]
 ---
 # Mount 

networking/ssh/tricks.md

@@ -1,6 +1,6 @@
 ---
 title: "ssh-tricks"
-tags: [ "Networking", "ssh", "tricks" ]
+tags: [ "networking", "ssh", "tricks" ]
 requires: [ "ssh" ]
 ---
 

networking/tor.md

@@ -1,9 +1,9 @@
 ---
 title: "tor"
-tags: [ "Networking" ]
+tags: [ "networking" ]
 ---
 
-# Get a hostname
+# Get a Hostname
 
 ```bash
 sudo vim /etc/tor/torrc

networking/transmission.md

@@ -1,6 +1,6 @@
 ---
 title: "transmission"
-tags: [ "Networking", "Torrenting" ]
+tags: [ "networking", "torrenting" ]
 ---
 # Torrench
 

networking/troubleshooting.md

@@ -1,11 +1,11 @@
 ---
 title: "troubleshooting"
-tags: [ "Networking" ]
+tags: [ "networking" ]
 ---
 
 # Do you have an IP?
 
-If not, try checking out what your local Networking interfaces are, then check if they have been picked up:
+If not, try checking out what your local networking interfaces are, then check if they have been picked up:
 
 ```bash
 dmesg | grep eth0

networking/website/nginx.md

@@ -1,6 +1,6 @@
 ---
 title: "nginx"
-tags: [ "Networking" ]
+tags: [ "networking", "web" ]
 ---
 Install nginx:
 

networking/wifi.md

@@ -1,6 +1,6 @@
 ---
 title: "network"
-tags: [ "Networking" ]
+tags: [ "networking" ]
 ---
 
 # Netstat Stuff

networking/wpa_supplicant.md

@@ -1,6 +1,6 @@
 ---
 title: "wpa_supplicant"
-tags: [ "Networking" ]
+tags: [ "networking" ]
 ---
 
 `wpa_supplicant` configurations are stored in `/etc/wpa_supplicant/wpa_supplicant-wlan0` (or equivalent).

sound/basics.md

@@ -1,6 +1,6 @@
 ---
 title: "Basic Sound"
-tags: [ "Sound" ]
+tags: [ "sound" ]
 ---
 # Pulse
 

sound/festival.md

@@ -1,6 +1,6 @@
 ---
 title: "festival"
-tags: [ "Sound" ]
+tags: [ "sound" ]
 ---
 # Basics
 

sound/mpd.md

@@ -1,6 +1,6 @@
 ---
 title: "mpd"
-tags: [ "Sound" ]
+tags: [ "sound" ]
 ---
 # Setup
 

sound/ncmpcpp.md

@@ -1,6 +1,6 @@
 ---
 title: "ncmpcpp"
-tags: [ "Sound" ]
+tags: [ "sound" ]
 ---
 
 # Music Player Daemon

system/Makefiles.md

@@ -23,7 +23,8 @@ Using four spaces will not work!
 
 ## Dependency Files
 
-Now we've made a `README.md` file, we can show how a makefile looks in the README:
+Now we've made a `README.md` file, we can show how a makefile looks in the README file.
+Add these lines to the `Makefile`:
 
 ```make
 README.md: Makefile
@@ -44,7 +45,7 @@ Note the order:
 
 Notice that the file above can print into the README by using `echo "" >> $@`.
 The `$@` stands for 'the file which we want', and `$<` stands for 'the first dependency file'.
-The `make` program starts by replacing those variables, and the result it:
+The `make` program starts by replacing those variables, so when you run `make`, the program looks like this:
 
 ```make
 README.md: Makefile
@@ -54,7 +55,6 @@ README.md: Makefile
 	cat Makefile >> README.md
 	echo '```' >> README.md
 
-
 ```
 
 |  Sigil  | Meaning                                |
@@ -71,7 +71,6 @@ README.md: Makefile
 
 You can assign a variable normally, but must refer to it in brackets.
 
-
 ```make
 storage_directory = backups
 
@@ -182,4 +181,3 @@ In this case, the makefile can see that `backup` depends on the current backup f
 - [File patterns](Makefiles/patterns.md)
 - [Makefile graphs](Makefiles/graph-easy.md)
 - [In-build help](Makefiles/help.md)
-- [Makefile graphs](Makefiles/graph-easy.md)

system/Makefiles/help.md

@@ -1,5 +1,5 @@
 ---
-title: "Makefiles"
+title: "make help target"
 tags: [ "system", "make", "help" ]
 ---
 
@@ -7,12 +7,14 @@ Make your first target 'help' to give an overview of the main targets.
 Running `make help` will search for text which starts with `## ` and show what that target does.
 
 ```make
-help: ## Print the help message
+.PHONY: help
+help: ## Print the help message.
 	@awk 'BEGIN {FS = ":.*?## "} /^[0-9a-zA-Z._-]+:.*?## / {printf "\033[36m%s\033[0m : %s\n", $$1, $$2}' $(MAKEFILE_LIST) | \
 		sort | \
 		column -s ':' -t
 
-clean: ## Remove generated files
+.PHONY: clean
+clean: ## Remove generated files.
 	$(RM) $(defaults)
 ```
 

system/Makefiles/patterns.md

@@ -1,4 +1,3 @@
-
 ---
 title: "Makefile Patterns"
 tags: [ "system", "make" ]

system/Makefiles/python_projects.md

@@ -0,0 +1,98 @@
+---
+title: "Python Projects with Makefiles"
+tags: [ "tutorial", "system", "makefiles", "graphviz", "python" ]
+requires: [ "Makefiles" ]
+---
+
+If you have a python script which requires a packages - e.g. `graphviz` - you can automate the setup with a `Makefile`.
+The `Makefile` will:
+
+1. Make three copies of an 8-line installer script.
+2. Use one of the installer script to install local packages.
+3. Install a symbolic link to python.
+3. Make a script called `activate`, which tells python to use 
+
+# Context
+
+Python coders don't like updating their projects, they just expect everyone to install the same version of everything that they have.
+Historically, people dealt with this by installing only half a dozen copies of `graphviz`; but now each python project uses a local environment, with a local copy of `graphviz`, which means everyone gets to install a new copy of `graphviz` every time they try out a project.
+
+Downloading 40MB of software for each 40-line script you write is called 'virtual environments' because it sounds cool.
+We can make it even cooler with `make`, but not yet, because python - like the fae of old - will not fetch anything until you know its true name.
+
+# Setup
+
+```sh
+command -v python
+realpath `!!`
+```
+
+You must reveal that true path, because `python` is always a relative symbolic link, to an absolute symbolic link, which leads to a shortcut.
+We can finally let `make` know how to invoke python, and where it will install `graphviz`.
+
+If your python's version is '3.14', then python needs its packages placed in `${somewhere}/lib/python3.14/site-packages/`.
+You must create a new, local, name for these packages, because - like the fey of old - python demands a private name in return for revealing its true name.
+
+I'll call mine `camelot`, because the path is long and arduous.
+Set up the Makefiles like this:
+
+```make
+py_link != command -v python
+py != realpath $(py_link)
+version != basename $(py)
+
+virtenv = camelot
+```
+
+Now you can ask for a local `pip` script, which can install the python packages:
+
+```make
+    [...]
+
+$(virtenv)/bin/pip:
+    $(py) -m venv $(virtenv)
+```
+
+Finally, list the packages you want in `requirements.txt`, and make `pip` install from it.
+
+
+```sh
+ppkg=graphviz
+echo ${ppkg} > requirements.txt
+```
+
+```make
+    [...]
+
+pkgs = $(virtenv)/lib/$(version)/site-packages/
+
+$(pkgs): $(virtenv)/bin/pip
+$(pkgs): requirements.txt
+    $(virtenv)/bin/pip install -r $<
+```
+
+The complete Makefile looks like this:
+
+
+```make
+all: .default
+
+py_link != command -v python
+py != realpath $(py_link)
+version != basename $(py)
+
+virtenv = camelot
+
+$(virtenv)/bin/pip:
+    $(py) -m venv $(virtenv)
+
+pkgs = $(virtenv)/lib/$(version)/site-packages/
+
+$(pkgs): $(virtenv)/bin/pip
+$(pkgs): requirements.txt
+    $(virtenv)/bin/pip install -r $<
+
+.PHONY: .default
+.default: $(pkgs)
+```
+

system/android.md

@@ -1,6 +1,6 @@
 ---
 title: "android"
-tags: [ "System", "phone" ]
+tags: [ "system", "phone" ]
 ---
 # mtpfs
 

system/awk.md

@@ -1,6 +1,6 @@
 ---
 title: "awk"
-tags: [ "System", ".csv" ]
+tags: [ "system", ".csv" ]
 ---
 # Basics
 

system/bash_tricks.md

@@ -1,6 +1,6 @@
 ---
 title: "bash tips"
-tags: [ "Shell", "POSIX" ]
+tags: [ "shell", "POSIX" ]
 ---
 ## Track Live Changes
 

system/character-encoding.md

@@ -1,6 +1,6 @@
 ---
 title: "character-encoding"
-tags: [ "System", "encoding" ]
+tags: [ "system", "encoding" ]
 ---
 
 Convert a text file from one encoding type to another with:

system/default_programs.md

@@ -1,6 +1,6 @@
 ---
 title: "Default Programs"
-tags: [ "Defaults", "Mime Type" ]
+tags: [ "defaults", "mime type" ]
 ---
 
 Install the package `xdg-utils`, then make very liberal use of the tab button.

system/kernel.md

@@ -1,8 +1,36 @@
 ---
-title: "kernel"
+title: "kernel modules"
 tags: [ "system" ]
 ---
 
+Kernel modules live in lib/modules/$(uname -r)
+
+## Change
+
+Load them with
+
+```sh
+modprobe ath9k
+```
+
+Or remove one with
+
+```sh
+modprove uvcvideo
+```
+
+The PC's irritating speaker beep can be really annoying. Disable it with:
+
+```sh
+modprobe -r pcspeaker
+```
+
+Permanently disable a module by blacklisting it in `/etc/modprobe.d`:
+
+```sh
+echo 'blacklist pcspkr' > /etc/modprobe.d/*nobeep*.conf
+```
+
 Check which kernel modules are loaded into memory:
 
 ```sh

system/lf.md

@@ -1,8 +1,10 @@
 ---
 title: "lf - The Light File Manager"
-tags: [ "File Browser", "TUI" ]
+tags: [ "file browser", "TUI" ]
 ---
 
+![lf](/tapes/lf.gif)
+
 ## Config File
 
 If you don't have a `~/.config/lf/lfrc` file, you can probably find an example in `/usr/share/examples/lf`.

system/lf.tape

@@ -0,0 +1,24 @@
+Require lf
+
+Set Shell "bash"
+Set FontSize 12
+Set Width 800
+Set Height 600
+
+Type "lf"
+Sleep 1.5s
+Enter
+Sleep 1.5s
+Type "jjj"
+Sleep 1s
+Enter
+Sleep 2s
+Type "fortune > file"
+Enter
+Sleep 2s
+Enter
+Type "/file"
+Enter
+Sleep 3s
+Type "q"
+

system/logs.md

@@ -1,6 +1,6 @@
 ---
 title: "logs"
-tags: [ "System" ]
+tags: [ "system" ]
 ---
 
 # Basic

system/managing_groups.md

@@ -0,0 +1,32 @@
+---
+title: "Managing Groups"
+tags: [ "system" ]
+---
+
+Check which groups you are in, and which are available:
+
+```sh
+cat /etc/group
+groups
+cat /etc/group | grep $USER
+```
+
+Remove yourself from all groups, and add yourself back to only `wheel`, `audio`, and your own group:
+
+```sh
+sudo usermod --groups wheel,audio,$USER
+```
+
+Add yourself to the `wheel` group:
+
+```sh
+su root -c "usermod --append --groups wheel $USER"
+```
+Add yourself to the `network` group:
+
+```sh
+sudo usermod -aG network $USER
+```
+
+The changes will not take effect until you log in again, so reboot or log into `localhost` with [ssh](../networking/ssh.md).
+

system/monitoring.md

@@ -1,6 +1,6 @@
 ---
 title: "Monitoring"
-tags: [ "System", "CPU", "Memory" ]
+tags: [ "system", "CPU", "memory" ]
 ---
 
 Print the average CPU load over 1 minute, 5 minutes, and 15 minutes:

system/partitions.md

@@ -1,6 +1,6 @@
 ---
 title: "partitions"
-tags: [ "System" ]
+tags: [ "system" ]
 ---
 
 # FDisk Basics

system/snaps.md

@@ -1,6 +1,6 @@
 ---
 title: "snaps"
-tags: [ "System", "Ubuntu", "snap" ]
+tags: [ "system", "Ubuntu", "snap" ]
 ---
 > sudo apt-get purge -y snapd
 

vim/navigate.md

@@ -1,48 +0,0 @@
----
-title: "vim navigation"
-tags: [ "vim" ]
----
-
-| Move | Command      |
-|:-----|:-------------|
-|Down page | C-f      |
-| Down half page | C-d |
-| Up page | C-b |
-| Up half page | C-u |
-
-## Scroll
-
-> C-e
-
-> C-y
-
-## Jumps
-
-Go through your last jumps:
-
-> C-I
-
-> C-O
-
-Go to the last and previous places you've changed:
-
-> g;
-
-> g,
-
-Go to a filename, and type `gf` (Go-to-File).
-For example, if you put your cursor over the `~/.vimrc` in this line, you can edit your vim configuration file.
-
-`source ~/.vimrc`
-
-# Project Structure
-
-Make a 20 character 'visual split' in the current working directory ('`.`').
-
-> :20vs .
-
-Change the view for this:
-
-> C-w x
-
-