Hi everyone,
I've seen some remarks on this issue, but I'm hoping that someone can
help me put them all together here. It seems that using a display
manager like xdm or gdm, or even just running X, overwrites important
variables set for a login shell. I don't like this behavior at all, and
I'm hoping to get some pointers on how to turn this off (if possible).
I'll try to break this down one by one.
1. PS1 gets rewritten by xterm (or some other portion of X). This
makes sense that I should have a customized PS1 in ~/.bashrc. However,
if I don't, I would hope to fall back to the default in /etc/profile.
At some point this get rewritten to lame prompt of bash-3.00$. Does
anyone know where this setting happens? Also, do you know if it can be
turned off?
2. PROMPT_COMMAND gets unset by X. I have no idea where this would
happen, but it doesn't occur if I'm running an su'd login shell and
start a non-login shell from there. It doesn't just get overwritten to
null, either. It doesn't exist in the new environment. Any thoughts?
3. LS_COLORS gets overwritten to null. Annoying, and I don't know why
it happens. Same symptoms as above.
4. PATH gets overwritten by xdm. This is extremely lame. I don't plan
to use xdm ever again for this reason. Why wouldn't it just inherit the
path from the login shell?
The "solution" I have is that I re-source half the profile scripts in my
~/.bashrc: tinker-term.sh, xterm-titlebars.sh and dircolors.sh. Any
comments are much appreciated.
Dan
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