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Date: Tue, 15 Jun 2004 01:32:49 +0200
From: Geert Hendrickx <geert.hendrickx@ua.ac.be>
To: freebsd-questions@freebsd.org
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Subject: setting variables in tcsh temporarily
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Hi, 

I have this simple question regarding the tcsh: 

in /bin/sh (Bourne shell) I can assign a value to an environment variable for
just one command, like this: 

VARIABLE=value <command>

e.g. "DISPLAY=:0 xterm" or "CFLAGS=O2 make".  

Can this be done with tcsh as well?  The only thing I can think of is this:

( setenv VARIABLE value ; <command> )

thus invoking a subshell, because for example the multiline variant

setenv DISPLAY :0
xterm
unsetenv DISPLAY

"forgets" the (possible) original value of the variable.  

Thanks for any hints, this is the only Bourne-shell feature I'm missing in the
C-shell.  

GH