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P4 Server Administration Documentation | 2025.2

# Lock and unlock files

You can use the `-g` flag of the `p4 lock` command to lock the files locally and globally. The `-g` option must be used with the `-c changelist` option. This lock is removed by the `p4 unlock -g` command or by any submit command for the specified changelist.

Use the `-x` option to the `p4 unlock` command to unlock files that have the `+l` filetype (exclusive open) but have become orphaned. This is typically only necessary in the event of an extended network outage between an edge server and the commit server.

To make `p4 lock` on an edge server take global locks on the commit server by default, set the `server.locks.global` configurable to `1`. See Configurables in P4 CLI Reference.

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