This is bash script for removing unused snap package

removeUnusedSnap.sh

#!/bin/sh
set -eu

snap list --all | awk '/disabled/{print $1, $3}' |
    while read snapname revision; do
        snap remove "$snapname" --revision="$revision"
    done

# Source : https://askubuntu.com/questions/1036633/how-to-remove-disabled-unused-snap-packages-with-a-single-line-of-command