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Full Discussion: Modify Shell default
Operating Systems Solaris Modify Shell default Post 302212109 by reborg on Sunday 6th of July 2008 11:45:37 AM
Old 07-06-2008
I understand that you are learning, so here are a couple of lessons to get you started.

Root is the super-user in Unix, when working as root there are very few safety checks performed.
Don't use root unless you have to, you are likely to break your machine if you do and are inexperienced.
Don't log in directly as root, use 'su' from a normal user.
Don't change the root shell, it can be done easily but there is no need to do so. If you have to work as root and want a different shell then just type the name of the shell you want to use (eg bash)
Do use and customize a normal user in whatever way you want, including the shell you want to use, the usermod command below will work for you.
 

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LEARN ABOUT MINIX

chsh

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 4.5                                                    01/25/2018                                                             CHSH(1)
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