Existe-t-il une commande bash pour vérifier si Time Machine a fini de sauvegarder ?

Les éléments suivants fonctionnent pour moi...

script backup_status :

    #!/usr/bin/env bash
    #
    # Determines if Time Machine is running and works with older Mac OS x versions
    #
    if [ x == x`type -P tmutil` ]; then
            # Older OSx
            count=`ps -ef | grep -v grep | grep -c 'CoreServices/backupd'`
            # Should also detect /Volume/Time Machine …/Latest/… directory ….inProgress/… bundle existence here to make it tight.
    else
            # OSx 10.7+
            count=`tmutil status | grep -c "Running = 1"`
    fi

    if [ $count == 0 ]; then
            echo stopped
    else
            echo running
    fi

script backup_wait :

    #!/usr/bin/env bash

    #
    # Waits for Time Machine backup to complete
    #
    while [ `backup_status` == running ] ; do
            sleep 2
    done