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Full Discussion: convert from ksh to bsh
Top Forums UNIX for Dummies Questions & Answers convert from ksh to bsh Post 723 by Neo on Wednesday 10th of January 2001 11:58:24 AM
Old 01-10-2001
If you mean converting shell script between the two, this is not difficult. However, I can't recall anyone ever having free time to do such a thing. Once a shell script is written, it serves it purpose. Converting it to another scripting language (i.e KSH, SH, etc) it not something UNIX admins normally do.

Converting old SH and KSH scripts to PERL or PHP is a often worthwhile; but then again, there should be a compelling reason. If it is a homework problem, that is a different story. In class, we do a lot of seemingly meaningless exercises to learn by practice. This is not a homework board, BTW.

If you are asking about the differences learning the different shells on the command line, that depends on the features you prefer in a shell environment. I only use KSH, others use and love other shells. However, just because one loves KSH does not mean they spend time translating SH scripts to KSH.
 

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LEARN ABOUT X11R4

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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