Re: Problem with su -

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On 06/03/12 06:30, Ed Greshko wrote:
On 03/06/2012 07:09 PM, Bob Goodwin wrote:
On 06/03/12 05:15, Ed Greshko wrote:
OK.... You have an unmodified ~/.bash_profile and a slightly
different ~/.bashrc from my fresh install. The differences are not
significant. The bottom line is that in ~/.bashrc you have if [ -f
/etc/bashrc ]; then . /etc/bashrc Which should source the file. The
place where the setting of PS1 takes place is here....
        # Turn on checkwinsize
        shopt -s checkwinsize
        [ "$PS1" = "\\s-\\v\\\$ " ]&&   PS1="[\u@\h \W]\\$ "
Basically it is saying....  if PS1 is set to '\s-\v\$ ' change it to
'[\u@\h \W]\$ ' .

So, it would seem, one of 2 things are going on.  Either the file isn't
being sourced or it isn't set as expected.

What I would do is modify /etc/bashrc to ....

    shopt -s checkwinsize
    echo "PS1 is set to $PS1">   /tmp/huh
    [ "$PS1" = "\\s-\\v\\\$ " ]&&   PS1="[\u@\h \W]\\$ "

And then perform an su -.



    Ok, is this what you are suggesting I do?

           shopt -s checkwinsize
        #  [ "$PS1" = "\\s-\\v\\\$ " ]&&  PS1="[\u@\h \W]\\$ "
           echo "PS1 is set to $PS1">  /tmp/huh
           [ "$PS1" = "\\s-\\v\\\$ " ]&&  PS1="[\u@\h \W]\\$ "
I am suggesting that you *add* the single line

echo "PS1 is set to $PS1">  /tmp/huh

directly after the line reading

shopt -s checkwinsize


In your next email you seem to have done what I've suggested and
reported....

                 bash-4.2# cat /tmp/huh
                 PS1 is set to \s-\v\$

              It does that ...

You said you have this....

        bash-4.2# ls /etc/bashrc*
        /etc/bashrc  /etc/bashrc~  /etc/bashrc.wrkng

I don't know what /etc/bashrc~ since I don't have one on my system.
Maybe move that to /tmp or something and try again?


       I don't know but "/etc/bashrc~" may be peculiar to the text editor I have been using for years. e3, e3em actually which emulates some Emacs commands. The tilde indicates a backup copy of the changed file. I don't trust that so I made one too, /etc/bashrc.wrkng

I also note that "ll" doesn't seem to work. That is also troublesome since it would seem to indicate a problem with sourcing the files in /etc/profile.d. You do have a /etc/profile file?

   bash-4.2# ls /etc/profile.d
   bash_completion.sh  colorls.sh           lang.sh              vim.csh
   colorgrep.csh        gnome-ssh-askpass.csh  less.csh              vim.sh
colorgrep.sh gnome-ssh-askpass.sh less.sh which2.csh colorls.csh lang.csh udisks-bash-completion.sh which2.sh

   There is an /etc/profile file but it is long, can send a copy if you
   want to see it.


Another thing to try.... Move /etc/bashrc.wrkng back to /etc/bashrc and then "su -". You'll have the "bad" prompt. But then type ". /etc/bashrc" and see if there are any error messages.

   Did that and re-booted since there was no immediate change.

       [bobg@box6 ~]$ ssh bobg@box9
       bobg@box9's password:
       Last login: Tue Mar  6 07:20:06 2012
       [bobg@box9 ~]$ su
       Password:
       bash-4.2# su -
       -bash-4.2# . /etc/bashrc
       [root@box9 ~]#

   No error messages!



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