# systemd-inhibit > Prohibit the system from entering certain power states. > Inhibitor locks may be used to block or delay system sleep and shutdown requests as well as automatic idle handling. > More information: . - List all active inhibition locks and the reasons for their creation: `systemd-inhibit --list` - Block system shutdown for a specified number of seconds with the `sleep` command: `systemd-inhibit --what shutdown sleep {{5}}` - Keep the system from sleeping or idling until the download is complete: `systemd-inhibit --what sleep:idle wget {{https://example.com/file}}` - Ignore lid close switch until the script exits: `systemd-inhibit --what sleep:handle-lid-switch {{path/to/script}}` - Ignore power button press while command is running: `systemd-inhibit --what handle-power-key {{command}}` - Describe who and why created the inhibitor (default: the command and its arguments for `--who` and `Unknown reason` for `--why`): `systemd-inhibit --who {{$USER}} --why {{reason}} --what {{operation}} {{command}}`