Linux – change default shell from zsh to bash

bashredhat-enterprise-linuxshellzsh

I'm trying to change my default shell in RHEL5 from zsh to bash.
I tried to the methods mentioned in this thead. By typing sudo /usr/bin/chsh -s /bin/bash, the system says sudo: /usr/bin/chsh: command not found. But the /usr/bin/chsh is there. Another way I found is to edit /etc/passwd file with my usrid, but it forbids me from editing it. Any suggestions?

Best Answer

Make sure /usr/bin/chsh has execute permissions by running sudo chmod a+x /usr/bin/chsh.

You should be able to run chsh using your own account. Otherwise you'd be setting root's shell. Try the following:

chsh -s $( which bash )

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Ubuntu: Accidentally changed root user to nonexistent shell

If you are able to login using your regular user, just change the root users shell directly:

sudo gedit /etc/passwd

Find the line for you root user, usually the first one, and change the last part from

...:bash

...:/bin/bash

And you should be good to go.

(NB: Replace gedit with whatever editor you fancy.)

How to ‘source’ a shell script using bash from zsh

You could put your compilation commandline in a bash script, which sources the compilation scripts bevor executing the compilation command.

Something like

    #!/bin/bash
    . /path/to/environmentscript
    . /path/to/morefunctionsscript

    compile_command

Then instead of invoking compile_command by hand, you just invoke your new bash script.

Best Answer

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Ubuntu: Accidentally changed root user to nonexistent shell

How to ‘source’ a shell script using bash from zsh

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