CHSH(1)

NOM
chsh - Changer l'interpréteur de commandes initial

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
    Afficher un message d'aide et quitter.

-R, --root CHROOT_DIR
    Apply changes in the CHROOT_DIR directory and use the configuration files from the CHROOT_DIR directory. Only absolute paths are supported. No SELINUX support.

-s, --shell SHELL
    Nom du nouvel interpréteur de commandes initial (« login shell ») de l'utilisateur. Si ce champ est vide, le système sélectionnera l'interpréteur de commandes initial par défaut.

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.

If the invoker is the superuser any value may be added regardless what is defined in the configuration files. 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.

CONFIGURATION

The following configuration variables in /etc/login.defs change the behavior of this tool:

CHSH_AUTH (boolean)
    If yes, the chsh program will require authentication before making any changes, unless run by the superuser.

LOGIN_STRING (string)
    The string used for prompting a password. The default is to use "Password: ", or a translation of that string. If you set this variable, the prompt will not be translated.

    If the string contains %s, this will be replaced by the user's name.

FICHIERS

/etc/passwd
    Informations sur les comptes des utilisateurs.

/etc/shells
    Liste des interpréteurs de commandes initiaux valables.

/etc/login.defs
    Configuration de la suite des mots de passe cachés « shadow password ».

VOIR AUSSI

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