CHSH - Online Linux Manual PageSection : 1
Updated : 02/07/2020
Source : shadow−utils 4​.8​.1
Note : User Commands
NAMEchsh − change login shell
SYNOPSISchsh [options] [LOGIN]
DESCRIPTIONThe 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​.
OPTIONSThe 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​.
NOTEThe 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 ALSOchfn(1), login.defs(5), passwd(5)​. 0
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