systemd-umount --version (return code: 0)
systemd 234
+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD -IDN2 +IDN default-hierarchy=hybrid
systemd-umount --help (return code: 0)
systemd-mount [OPTIONS...] WHAT [WHERE]
systemd-mount [OPTIONS...] --list
systemd-umount [OPTIONS...] WHAT|WHERE...
Establish a mount or auto-mount point transiently.
-h --help Show this help
--version Show package version
--no-block Do not wait until operation finished
--no-pager Do not pipe output into a pager
--no-ask-password Do not prompt for password
-q --quiet Suppress information messages during runtime
--user Run as user unit
-H --host=[USER@]HOST Operate on remote host
-M --machine=CONTAINER Operate on local container
--discover Discover mount device metadata
-t --type=TYPE File system type
-o --options=OPTIONS Mount options
--fsck=no Don't run file system check before mount
--description=TEXT Description for unit
-p --property=NAME=VALUE Set mount unit property
-A --automount=BOOL Create an auto-mount point
--timeout-idle-sec=SEC Specify automount idle timeout
--automount-property=NAME=VALUE
Set automount unit property
--bind-device Bind automount unit to device
--list List mountable block devices
-u --umount Unmount mount points