[zsh] add over-engeneered renumbering function

home/.zshrc.local

@@ -104,6 +104,20 @@ function urlencode() {
     python3 -c "import urllib.parse; print(urllib.parse.quote(open(0, 'rb').read()))"
 }
 
+function renumber() (
+    if (( $# < 2 )); then
+        echo "USAGE: $0 DIGITS FILES"
+        return 1
+    fi
+    digits=$1
+    shift 1
+    i=1
+    for file in $@; do
+        mv "$file" "$(dirname $file)/$(printf %0${digits}d $i).${file##*.}"
+        i=$((i+1))
+    done
+)
+
 function mkvextract-all-attachments() {
     mkvextract $1 attachments $(mkvmerge --identify $1|grep "Attachment ID"|sed "s/Attachment ID \([0-9]*\): .*/\1/")
 }