> systemd-umount [OPTION…] WHAT|WHERE…

Unmount one or more mount points.

Common options:
  -h --help              Show this help
     --version           Show package version
     --user              Run as user unit
  -H --host=[USER@]HOST  Operate on remote host
  -M --machine=CONTAINER Operate on local container
     --canonicalize=BOOL Whether to canonicalize path before operation
     --no-block          Do not wait until operation finished
     --no-pager          Do not start a pager
     --no-legend         Do not show headers and footers
  -l --full              Do not ellipsize output
     --no-ask-password   Do not prompt for password
  -q --quiet             Suppress informational messages during runtime
     --json=FORMAT       Generate JSON output (pretty, short, or off)

See the systemd-mount(1) man page for details.