Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10.2 9/18/84; site brl-tgr.ARPA
Path: utzoo!watmath!clyde!bonnie!akgua!mcnc!decvax!genrad!panda!talcott!harvard!seismo!brl-tgr!tgr!rbbb@RICE.ARPA
From: rbbb@RICE.ARPA (David Chase)
Newsgroups: net.unix-wizards
Subject: Environment variable brain damage
Message-ID: <8554@brl-tgr.ARPA>
Date: Sat, 23-Feb-85 18:47:32 EST
Article-I.D.: brl-tgr.8554
Posted: Sat Feb 23 18:47:32 1985
Date-Received: Wed, 27-Feb-85 05:56:57 EST
Sender: news@brl-tgr.ARPA
Lines: 34

Setting: Vax, Pyramid, Sun, or pdp-11 running csh and sh

Program: csh/sh interaction

Bug:  Environment variables set in the C-shell may cause Bourne shell
to freak out.

Repeat-by: 
1) Set an environment variable containing a hyphen (say "setenv A-B 1")
2) Type "sh"
   The result will be the message "A-B=1: is not an identifier", not a
   shell.
3) Unset that environment variable
4) Now type "sh"

Or just run this file through the C shell.

	echo 'echo I am a shell file' > afile
	chmod +x afile
	setenv A-B 1
	./afile
	unsetenv A-B
	./afile

It will print:
	A-B=1: is not an identifier
	I am a shell file

Fix: I dunno; as a "suggested workaround", don't set any environment
variables like that in the csh.

Enjoy, 

David Chase @ Rice University