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CHSH(1)                                     User Commands                                    CHSH(1)



NAME
       chsh - change login shell

SYNOPSIS
       chsh [options] [LOGIN]

DESCRIPTION
       The chsh command changes the user login shell. This determines the name of the user's initial
       login command. A normal user may only change the login shell for her own account; the
       superuser may change the login shell for any account.

OPTIONS
       The options which apply to the chsh command are:

       -h, --help
           Display help message and exit.

       -R, --root CHROOT_DIR
           Apply changes in the CHROOT_DIR directory and use the configuration files from the
           CHROOT_DIR directory.

       -s, --shell SHELL
           The name of the user's new login shell. Setting this field to blank causes the system to
           select the default login shell.

       If the -s option is not selected, chsh operates in an interactive fashion, prompting the user
       with the current login shell. Enter the new value to change the shell, or leave the line
       blank to use the current one. The current shell is displayed between a pair of [ ] marks.

NOTE
       The only restriction placed on the login shell is that the command name must be listed in
       /etc/shells, unless the invoker is the superuser, and then any value may be added. An account
       with a restricted login shell may not change her login shell. For this reason, placing
       /bin/rsh in /etc/shells is discouraged since accidentally changing to a restricted shell
       would prevent the user from ever changing her login shell back to its original value.

FILES
       /etc/passwd
           User account information.

       /etc/shells
           List of valid login shells.

       /etc/login.defs
           Shadow password suite configuration.

SEE ALSO
       chfn(1), login.defs(5), passwd(5).



shadow-utils 4.8.1                           02/06/2024                                      CHSH(1)