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Re: GNU emacs locks files modified with CVS

From: gebser
Subject: Re: GNU emacs locks files modified with CVS
Date: Tue, 16 Dec 2003 09:10:39 -0500 (EST)

There's two ways which will keep/set the DISPLAY variable:

First, if the DISPLAY variable is set in user1 and you do "su user2", 
then the environment of user1 will carry into user2.  IOW, you're good. 

Second, if you, instead, do "su - user2", then you will have a fresh 
environment, that of user2.  If user2's environment doesn't have the 
DISPLAY variable set properly, you can do this by setting this in 
user2's ~/.bashrc file... if user2's default shell is bash-- if you're 
using some other shell, consult the manpage for the proper file and 
command syntax for setting the environment.


At 10:44 (UTC+0100) on Tue, 16 Dec 2003 Pepijn Kenter said:

= Kevin Rodgers wrote:
= > Pepijn Kenter wrote:
= > 
= >> When loged in as user1 type:
= >> su user2
= >> emacs # edit, exit and save the changes
= >> emacs # is now read only.
= >>
= >> I can not edit the second time because it is apperently 
= >> locked by user2 (as shown in the status line? of emacs). File 
= >> permissions are correct and the onwner of (still) is user2.
= >>
= >> After some googling I think the possible cause is that emacs is 
= >> inconsistent in the way it handles the USER and LOGNAME variables.
= >> Indeed USER is set to user2 whereas LOGNAME is still user1. When I 
= >> change LOGNAME to user2 the problem disappears.
= >>
= >> So, what to do?
= > 
= > 
= > If you want a login shell as user2, use `su - user2`.
= > 
= I'm sorry, I should have mentioned that I tried that, but then my 
= DISPLAY environment variable is not set so I can not use the graphical 
= emacs. I can, of course, set DISPLAY manually but it would be a nuisance 
= to do that every time I log in as user2.
= It's not quit clear to me when I should use a login shell and when not. 
= IMO the bash documentation only explaines the differences, not why the 
= different shells exist.
= I'm guessing the solution will involve tweeking my system, not my emacs 
= settings, so I probably should go to another newsgroup. Still, any help 
= from here would be appreciated.
= E.g. where is the DISPLAY variable set normally (when I log in as 
= user1)? I'm using debian linux.
= Pepijn Kenter.
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= Help-gnu-emacs mailing list
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