How to change from csh to bash as default shell

  • I have csh as my default shell, as shown by echo $SHELL. I want to switch to bash as my default shell. I tried the following approaches to no avail:

    1. With chsh I get:

      chsh: can only change local entries; use ypchsh instead.
      
    2. With ypchsh I get:

      ypchsh: yppasswdd not running on NIS master host ("dcsun2").
      

    I only have .chsrc in my home directory and I cannot find any .profile files in /etc. How can I change my default shell to bash?

    It could be useful to know on which type of unix you are.

    1. Make sure you've got bash installed.

    2. Learn the location of bash:

      which bash
      

      or

      whereis bash
      

      Below, I'll assume the location is /bin/bash.

      a) If you have administrative rights, just run as root:

      usermod -s /bin/bash YOUR_USERNAME
      

      (replacing YOUR_USERNAME with your user name).

      b) If you don't have adm. rights, you can still just run bash --login at login, by putting the below line at the end of your .cshrc or .profile (in your home directory) :

      setenv SHELL /bin/bash
      exec /bin/bash --login
      

    2b. Check if `bash` is enumerated in `/etc/shells` with correct path.

    @manatwork That would be relevant for **2a**, not 2b. And only useful in a strange/broken system setup for determining why the solution did not work.

    Yes, actually my intention was to write something like "2a.b".

    1. SHELL=/bin/bash gives a command not found error. 2. Your solution gives me a bash shell as the prompt. But it does not change my login shell. Thanks for the help though.

    Here is what I did to resolve this. 1. exec /bin/bash --login in the .cshrc file 2. set SHELL=/bin/bash and then export SHELL in the /etc/profile file. Thanks.

    Ah, sorry - I meant the first line to be `export SHELL=/bin/bash`. Actually there's a better way than that - see update.

    You don't have to do the which/whereis separately. For example, ``SHELL=`which bash` `which bash` YOUR_USERNAME``

    exec /bin/bash without --login works for me

    `exec /bin/bash --login` does not seem to be reading `.bashrc`

    @MarcusJuniusBrutus Because it is not supposed to do so. This seems to be a very common misconception - some distributions even ship default `.bash_login`, `.profile` or similar files which remedy this. But that is quite far from the original subject. You may ask a separate question.

    This seems to break non-interactive uses, like `scp`. You need `if ($?prompt) then; exec /bin/bash --login; endif`

    WARNING: After adding `exec /bin/bash`, scp stopped working for me.

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Content dated before 6/26/2020 9:53 AM