The chsh (change shell) command sets your login shell program. Invoked without a username, chsh affects your account; invoked with a username (by root), it affects that user. With no options, chsh will prompt you for the desired information.
$ chsh Changing shell for smith. Password: ******* New shell [/bin/bash]: /bin/tcsh
The new shell must be listed in /etc/shells.
chsh Command Examples
1. To change your login shell:
# chsh -s /bin/bash
2. To print the list of shells:
# chsh -l
3. To print the usage message and exit:
# chsh -u
4. To print the version information:
# chsh -v
– After changing shells, you might have problems running some commands or have a prompt or display that’s not as good as the original. That’s likely a result of your default shell being carefully customized by your system administrator.
– Some systems don’t let users use chsh to change shells. If this is the case, you’ll need to email your system administrator and ask for a change, or see if there are alternative methods.
chsh is used to change your login shell. If a shell is not given on the command line, chsh prompts for one. All valid shells are listed in the /etc/shells file. For example:
$ chsh -l /bin/bash /bin/sh /bin/ash /bin/bsh /bin/tcsh /bin/csh /bin/ksh /bin/zsh