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Path: utzoo!watmath!clyde!cbosgd!ihnp4!plus5!hokey
From: hokey@plus5.UUCP (Hokey)
Newsgroups: net.bugs.usg
Subject: PATH bug?
Message-ID: <807@plus5.UUCP>
Date: Thu, 1-Aug-85 02:25:38 EDT
Article-I.D.: plus5.807
Posted: Thu Aug  1 02:25:38 1985
Date-Received: Fri, 2-Aug-85 00:45:18 EDT
Organization: Plus Five Computer Services, St. Louis
Lines: 47
Keywords: sh

If the current directory is specified as the last directory searched using
a trailing ":" instead of ":." (in $PATH) then sh will not find executable
files in the current directory.

The problem only seems to occur when the current directory is searched last.

I have noticed this bug under Vr0 and Vr2.  Is this problem more widespread
than just my vendor?

The following shar file demosntrates the bug using "make" on my machine.
Additionally, if the unpacking is done in, for example, /tmp, the bug
can also be demonstrated by the sequence:

	$ cd /tmp
	$ PATH=/:
	$ ls -l showbug
	-rwxrwxr-x   1 hokey    usr            9 Aug  1 00:54 showbug
	$ showbug
	showbug: not found
---
# This is a shell archive.  Remove anything before this line,
# then unpack it by saving it in a file and typing "sh file".
#
# Wrapped by hokey on Thu Aug  1 00:56:39 CDT 1985
# Contents:  makefile showbug
 
echo x - makefile
sed 's/^@//' > "makefile" <<'@//E*O*F makefile//'
# If the next line reads "PATH=/usr/bin:/bin:." then all is well.
PATH=/usr/bin:/bin:
SHELL=/bin/sh

all:
	set ; showbug
@//E*O*F makefile//
chmod u=rw,g=rw,o=r makefile
 
echo x - showbug
sed 's/^@//' > "showbug" <<'@//E*O*F showbug//'
echo Foo
@//E*O*F showbug//
chmod u=rwx,g=rwx,o=rx showbug
 
exit 0
-- 
Hokey           ..ihnp4!plus5!hokey
		  314-725-9492