Date: Sat, 18 Jul 1998 15:54:22 +0930 From: Greg Lehey <grog@lemis.com> To: FreeBSD Questions <questions@FreeBSD.ORG> Subject: Unsetting exported environment variables? Message-ID: <19980718155422.D376@freebie.lemis.com>
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If you try to run SuperProbe with the variable DISPLAY set, it will refuse to run. That's OK with the C shell, you just enter: % unsetenv DISPLAY % /usr/X11R6/bin/SuperProbe Unfortunately, to my knowledge there's no similar function in the Bourne shell. You can set the variable to the null string: # DISPLAY= # /usr/X11R6/bin/SuperProbe SuperProbe: Cannot be run while an X server is running SuperProbe: If an X server is not running, unset $DISPLAY and try again SuperProbe: Cannot open video Can anybody tell me how to do this in the Bourne shell? The only thing I can think of is to start a C shell for this operation. Greg -- See complete headers for address and phone numbers finger grog@lemis.com for PGP public key To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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