[Update] bulk update

common/.config/tmux/scripts/net.sh

@@ -10,8 +10,8 @@
 # only one of them re-samples the counters per refresh.
 which=${1:-dl}
 rt="${XDG_RUNTIME_DIR:-/tmp}"
-ctr="$rt/tmux_net_ctr"      # previous counters:  rx tx epoch.ns
-cache="$rt/tmux_net_cache"  # computed rates:     dl_rate ul_rate epoch_s
+ctr="$rt/tmux_net_ctr"     # previous counters:  rx tx epoch.ns
+cache="$rt/tmux_net_cache" # computed rates:     dl_rate ul_rate epoch_s
 
 emit() { # emit <icon-printf-escape> <rate>
   printf "$1 %s" "$2"
@@ -20,8 +20,8 @@ emit() { # emit <icon-printf-escape> <rate>
 # Reuse a fresh cache so dl and ul agree and we only sample once per refresh.
 fresh_emit() { # print from the cache and exit — if the cache is fresh enough
   [ -r "$cache" ] || return 1
-  read -r cdl cul cts < "$cache"
-  { [ -n "$cts" ] && [ "$(( $(date +%s) - cts ))" -lt 3 ]; } || return 1
+  read -r cdl cul cts <"$cache"
+  { [ -n "$cts" ] && [ "$(($(date +%s) - cts))" -lt 3 ]; } || return 1
   if [ "$which" = ul ]; then emit '\U0000f093' "$cul"; else emit '\U0000f019' "$cdl"; fi
   exit 0
 }
@@ -39,15 +39,18 @@ fresh_emit
 now=$(date +%s.%N)
 read -r rx tx < <(awk 'NR>2{gsub(/:/," "); if($1!="lo"){r+=$2; t+=$10}} END{print r+0, t+0}' /proc/net/dev)
 
-drx=0; dtx=0; dt=1
+drx=0
+dtx=0
+dt=1
 if [ -r "$ctr" ]; then
-  read -r prx ptx pnow < "$ctr"
+  read -r prx ptx pnow <"$ctr"
   dt=$(awk -v a="$now" -v b="$pnow" 'BEGIN{d=a-b; print (d>0.05)?d:1}')
-  drx=$(( rx - prx )); dtx=$(( tx - ptx ))
+  drx=$((rx - prx))
+  dtx=$((tx - ptx))
   [ "$drx" -lt 0 ] && drx=0
   [ "$dtx" -lt 0 ] && dtx=0
 fi
-printf '%s %s %s\n' "$rx" "$tx" "$now" > "$ctr"
+printf '%s %s %s\n' "$rx" "$tx" "$now" >"$ctr"
 
 human() { awk -v b="$1" 'BEGIN{ split("B K M G T", u, " "); i=1;
   while (b >= 1024 && i < 5) { b /= 1024; i++ }
@@ -55,6 +58,6 @@ human() { awk -v b="$1" 'BEGIN{ split("B K M G T", u, " "); i=1;
 
 dl=$(human "$(awk -v x="$drx" -v d="$dt" 'BEGIN{printf "%d", x/d}')")
 ul=$(human "$(awk -v x="$dtx" -v d="$dt" 'BEGIN{printf "%d", x/d}')")
-printf '%s %s %s\n' "$dl" "$ul" "$(date +%s)" > "$cache"
+printf '%s %s %s\n' "$dl" "$ul" "$(date +%s)" >"$cache"
 
 if [ "$which" = ul ]; then emit '\U0000f093' "$ul"; else emit '\U0000f019' "$dl"; fi