Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!tut.cis.ohio-state.edu!mrspoc.transact.com!kayvan
From: kayvan@mrspoc.transact.com
Newsgroups: gnu.bash.bug
Subject: Bad bash bug regarding if statements
Message-ID: <8908042051.AA02207@apple.com>
Date: 4 Aug 89 20:51:55 GMT
Sender: daemon@tut.cis.ohio-state.edu
Distribution: gnu
Organization: GNUs Not Usenet
Lines: 37

The following obviously wrong shell script:

------------------------------ begin
#!/bin/bash
if Your_Mother_Wears_Army_Boots
then
	How about we go out tonight?
	No way, Jose!
NO_ENDING_FI
------------------------------ end

Is silently ignored. The status upon return in 0.

I found this bug in the following subtle case:

------------------------------ begin
#!/bin/bash - Test shell script
if [ "$LOGNAME" != "" ]
then
	export USER=$LOGNAME ; echo USER set to LOGNAME
else
	export USER=`who am i | awk '{print $1}'`
	echo USER set to who output. $USER
endif
echo "Rest of script follows."
echo "Hello????"
------------------------------ end

The script *looked* okay, but all variables after this section that depended
on USER were not being set.

The problem was, of course, the endif.

			---Kayvan

Kayvan Sylvan @ Transact Software, Inc. -*-  Mountain View, CA (415) 961-6112
Internet: kayvan@Transact.COM -*- UUCP: ...!{apple,pyramid,mips}!mrspoc!kayvan