bin: fix oversights & improve freq

.local/bin/scripts/clean

@@ -44,9 +44,8 @@ fi
 
 highlight "d to recursively remove development caches"
 if [[ $1 =~ "d" ]]; then
-	rm -rf .npm .yarn
-	arg-test -name "src" -prune -o \
-		-type d \( -name 'cache' $(echo $DIRS_GENERATED | sed 's|-x \([^ ]\+\)|-o -name "\1"|g') \
+	find -name "src" -prune -o \
+		-type d \( -name 'cache' $(echo $DIRS_GENERATED | sed 's|-x \([^ ]\+\)|-o -name \1|g') \) \
 		-print -exec rm -r {} + -prune
 	echo -n "  " && highlight "build directories"
 	find $DATA/2-standards/dev/aur -mindepth 2 -maxdepth 2 -type d -not -name ".*" \

.local/bin/scripts/freq

@@ -1,6 +1,21 @@
 #!/bin/sh
-# Show a frequance spectrogram using sox and timg
-out=${2:-/tmp/$1-sox.png}
-mkdir -p "$(dirname "$out")"
-sox "$1" -n spectrogram -o "$out"
-timg --title "$out"
+# Show a frequence spectrogram using sox and timg
+# https://sound.stackexchange.com/questions/40226/show-the-differences-between-two-similar-audio-files-using-graphical-method
+case $1 in
+  (-a) shift
+    for arg; do $0 "$arg"; done
+    ;;
+  (-d) shift
+    diff="/tmp/diff-$1-$2.wav"
+    ffmpeg -y -v warning -i "$1" "/tmp/$1.wav"
+    ffmpeg -y -v warning -i "$2" "/tmp/$2.wav"
+    sox -m -v 1 "/tmp/$1.wav" -v -1 "/tmp/$2.wav" "$diff"
+    $0 "$diff"
+    ;;
+  (*)
+    out="${2:-/tmp/freq-$(basename "$1").png}"
+    mkdir -p "$(dirname "$out")"
+    sox "$1" -n spectrogram -o "$out"
+    timg --title "$out"
+    ;;
+esac

.local/bin/scripts/rd

@@ -6,7 +6,7 @@ do
 	test -w "$f" && elevate="" || elevate=sudo
 	if test -d "$f"; then
 		if test -e "$f/.git" || test -e "$f/packed-refs"
-			then echo -n "Force delete git project $f?"
+			then echo -n "Force delete git project $f? "
 				read answer
 				test "$answer" = "y" && $elevate rm -rf "$f"
 			else find "$f" -maxdepth 4 -type d -empty -printf "Removing empty %p\n" -delete

.local/bin/scripts/sd

@@ -1,11 +1,14 @@
 #!/bin/sh
 # disk size usage information
-IFS="\n"
-cols=$(tput cols)
-lsblk --output name,size,fsuse%,mountpoints,label$(test $cols -gt 110 && echo ',uuid,fstype') --width $cols |
-  while read line
-  do p=$(echo "$line" | sed 's|.* \([[:digit:]]\+\)%.*|\1|;t;c0')
-     printf "$(expr "$line" : " " >/dev/null || echo "\033[$(test -z "$first" && echo "4" || expr "5;31" \& "$p" \> 98 \| "31" \& "$p" \> 97 \| "33" \& "$p" \> 94 \| "35" \& "$p" \> 90)m")%s\n" "$line"
-     first=1
-  done
-# df -B1M -x tmpfs -x devtmpfs -x squashfs | awk -v a="\033[31m" -v b="\033[33m" -v c="\033[35m" -v n="\033[0m" 'NR==1 {printf "%-20s %6s %7s %9s %s\n",$1,$5,$3,$4,$6} NR>1 {u=strtonum($5); printf (u > 99) ? a : (u > 97) ? b : (u > 94) ? c : ""; printf "%-20s %6s %6.1fG %8.1fG %s\n",$1,$5,$3/1000,$4/1000,$6; printf n}'
+if test "$1" = "f"
+  then df -B1M -x tmpfs -x devtmpfs -x squashfs | awk -v a="\033[31m" -v b="\033[33m" -v c="\033[35m" -v n="\033[0m" 'NR==1 {printf "%-20s %6s %7s %9s %s\n",$1,$5,$3,$4,$6} NR>1 {u=strtonum($5); printf (u > 99) ? a : (u > 97) ? b : (u > 94) ? c : ""; printf "%-20s %6s %6.1fG %8.1fG %s\n",$1,$5,$3/1000,$4/1000,$6; printf n}'
+  else
+    IFS="\n"
+    cols=$(tput cols)
+    lsblk --output name,size,fsuse%,mountpoints,label$(test $cols -gt 110 && echo ',uuid,fstype') --width $cols |
+      while read line
+      do p=$(echo "$line" | sed 's|.* \([[:digit:]]\+\)%.*|\1|;t;c0')
+         printf "$(expr "$line" : " " >/dev/null || echo "\033[$(test -z "$first" && echo "4" || expr "5;31" \& "$p" \> 98 \| "31" \& "$p" \> 97 \| "33" \& "$p" \> 94 \| "35" \& "$p" \> 90)m")%s\n" "$line"
+         first=1
+      done
+fi