shell function for kitty to dump the pane screen content to new file to prevent overwrite

dump.sh

dump () 
{ 
    local id="$1";
    local dir="/tmp/pane_dump";
    local base="pane";
    local index=1;
    local file;
    if [ -z "$id" ]; then
        echo "Usage: dump <pane-id>" 1>&2;
        return 1;
    fi;
    mkdir -p "$dir";
    while [ -e "$dir/${base}${index}" ]; do
        index=$((index + 1));
    done;
    file="$dir/${base}${index}";
    kitty @ get-text --match id:"$id" --extent=all > "$file";
    echo "Dumped to $file";
    cat "$file"
}