mountpoint – see if a directory is a mountpoint

commandline session $mountpoint Usage: mountpoint [-q] [-d] [-x] path $mountpoint / / is a mountpoint $mountpoint /var /var is not a mountpoint $mountpoint /usr /usr is not a mountpoint $mountpoint -x /dev/sda1 8:1 $mountpoint -x /dev/sda2 8:2 $mountpoint -x proc mountpoint: proc: No such file or directory $mountpoint -x /proc/ mountpoint: /proc/: not a block …