Automator imageboard style filenames rename Finder Quick Action

Auto Filename.md

Automator -> New Quick Action

Workflow receives current files or folders in any application

Image: Documents

Get Selected Finder Items

Run Shell Script Shell: /bin/zsh - Pass Input: as arguments

for fullpath in "$@"
do
    filename="${fullpath##*/}"
    newname="$(echo "$(date '+%s')""$(jot -r 1 100 999)")"
    dir="${fullpath%$filename}"
    base="${filename%.[^.]*}"
    ext="${filename:${#base} + 1}"
    dext=$(echo $filename | grep -E -o '\.[^.]*\.[^.]*$')
    if [[ $ext == "" ]]; then
        ext=""
    else
        if [[ $dext == "" ]]; then
            ext=".${filename:${#base} + 1}"
        else
            ext=$dext
        fi
    fi
    echo -e "$fullpath:\n\tdir  = \"$dir\"\n\tbase = \"$base\"\n\text  = \"$ext\"\n\tdext  = \"$dext\""
    echo mv "$fullpath" "$dir$newname$ext"
    mv "$fullpath" "$dir$newname$ext"
    sleep 0.1
done

Right-click on a file, folder, a group of files or folders in Finder and select Auto Filename

Result:

1690136465531/
1690127110871.gif
1690126366780.warc
1690126824152.webm
1690126824176.mp4
1690136421367.client.secret
1690126366822.png
1690126366733.png
1690126367657.png
1690126367316.png
1690126366368.png
1690126365536.jpg
1690126366542.jpg
1690126515664.jpg
1690124145815.tar.gz
1690126367573.gif
1690126366961.gif
1690126366437.gif