chsh
change login shell
see also :
chfn - passwd
Synopsis
add an example, a script, a trick and tips
examples
source
chsh -s /bin/zsh
sudo rm /etc/zshenv
source
if [[ "$ZSH_VERSION" == ""$ ]]; then
chsh -s `which zsh`
fi
source
Use user-installed shell?
The whole point of /etc/shells is so that the
administrator can control what users set as their shell. Setting
a shell which isn't listed in /etc/shells would
therefore be a security hole. The best solution is to ask the
administrator to install zsh system wide, but if that's not
possible your only option is configuring your current shell (I'm
assuming bash) to execute your custom shell. You can do this by
adding the following to ~/.bash_profile (this will
only affect login shells, whereas ~/.bashrc will
also affect non-login shells which may break scripts).
exec ~/bin/zsh
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.
files
/etc/passwd
User account information.
/etc/shells
List of valid login shells.
/etc/login.defs
Shadow password suite configuration.
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.
see also
chfn ,
login.defs, passwd .