umount.nfs -V (return code: 1)
umount.nfs: unrecognized option '--version'
usage: umount.nfs dir [-fvnrlh]
options:
-f force unmount
-v verbose
-n Do not update /etc/mtab
-r remount
-l lazy unmount
-h print this help
umount.nfs --help (return code: 1)
usage: umount.nfs dir [-fvnrlh]
options:
-f force unmount
-v verbose
-n Do not update /etc/mtab
-r remount
-l lazy unmount
-h print this help