Remove unused snap revisions

snap-cleanup.sh

cleanup-snaps() {
for SNAP in $(sudo find 2>/dev/null /snap -maxdepth 2 -type l -name current |awk -F/ '{print $3}');do 
  local -a OLD_REVS=($(sudo find 2>/dev/null /snap/${SNAP} -maxdepth 1 ! -name "$(readlink /snap/${SNAP}/current)" ! -name ${SNAP} -type d -exec basename {} \;))
  [[ ${#OLD_REVS[@]} -ge 1 ]] && { printf '%s %s\n' ${SNAP} ${OLD_REVS[@]}|\
	xargs -rn2 -P1 bash -c 'sudo snap remove $0 --revision=$1|\
	sed -r "s/^.*\(|\)//g;s/removed/of snap $0 &/g;s/^.*$/"$(printf "\e[1m&\e[0m")"/g;s/revision/Revision/g"'
  [[ $? -eq 0 ]] && { printf "\e[1A\e[60G\e[38;2;0;230;0mOK\e[0m\n"; } || { printf "\e[58G\e[38;2;240;0;0mFAILED\e[0m\n";} ; }
  [[ ${#OLD_REVS[@]} -lt 1 ]] && printf "\e[38;2;150;150;150msnap \"${SNAP}\" only has a single revision\e[60GOK\e[0m\n" || true
done
}