How to remove all local snapshots in macOS High Sierra

If you are using macOS High Sierra and want to delete all your local snapshots, use the following command:

sudo tmutil listlocalsnapshots / | awk -F. '{ system("sudo tmutil deletelocalsnapshots "  $4); }'

Where:

    sudo tmutil listlocalsnapshots /


List of all local snapshots in form:

    com.apple.TimeMachine.2017-11-27-142931
    com.apple.TimeMachine.2017-11-27-152919
    com.apple.TimeMachine.2017-11-27-163113
    com.apple.TimeMachine.2017-11-27-173243
    com.apple.TimeMachine.2017-11-27-183511
    com.apple.TimeMachine.2017-11-27-193725
    com.apple.TimeMachine.2017-11-27-203137
        ...

The command:

    awk -F. { print $4; }

Will print date part.

And command:

    sudo tmutil deletelocalsnapshots

will delete given date.

 And don't forget to reboot after deleting.