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P4 CLI Documentation | 2025.1

# Logging in and logging out

If time limits are in effect at your site, you must issue the `p4 login` command to obtain a ticket. Enter your password when prompted. If you log in successfully, a ticket is created for you in the ticket file in your home directory, and you are not prompted to log in again until either your ticket expires or you log out by issuing the `p4 logout` command.

To see how much time remains before your login expires, issue the following command:

    p4 login -s

If your ticket is valid, the length of time remaining is displayed. To extend a ticket’s lifespan, use `p4 login` while already logged in. Your ticket’s lifespan is extended by 1/3 of its initial timeout setting, subject to a maximum of your ticket’s initial timeout setting.

To log out of P4 Server, issue the following command:

    p4 logout

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