apfs-delete-snapshot.sh

function tmc() {
    before=$(df -hl  / |awk '{print $3}' |tail -n1)
    count=0
	for snapshot in $(tmutil  listlocalsnapshots /|awk -F. '{print $4}');do
        let 'count++'
		echo "delete snapshot $snapshot"
		tmutil deletelocalsnapshots $snapshot;
	done
    after=$(df -hl  / |awk '{print $3}' |tail -n1)
    if [[ $count -ne 0 ]]; then
        echo "Total $count snapshot(s) deleted, Size change: $before ===> $after"
    else
        echo "No snapshot deleted"
    fi
}

function tml() {
    tmutil  listlocalsnapshots /|awk -F. '{print $4}'
}