[22030] in Athena Bugs
sun4 9.1.16: bash
daemon@ATHENA.MIT.EDU (Arun A Tharuvai)
Thu May 8 22:14:42 2003
Message-Id: <200305090214.WAA12884@multics.mit.edu>
To: bugs@MIT.EDU
From: Arun A Tharuvai <aatharuv@MIT.EDU>
Cc: aatharuv@MIT.EDU
Date: Thu, 08 May 2003 22:14:40 -0400
System name: multics.mit.edu
Type and version: UltraAX-i2 9.1.16 (with mkserv)
Display type: unknown
Shell: /bin/athena/bash
Window manager: unknown
What were you trying to do?
Summary: Bash users without architecture specific binary directory
under home directory, will have the current directory as the first
element of their PATH.
A user (mforbes) noticed that programs in his current directory, were
being run before other directories in his path, even though . wasn't
the first element. He noticed that in /usr/athena/lib/init/bashrc the line
PATH=`/usr/athena/bin/athdir $HOME`:$athena_path:.
evaluated to :$athena_path:.
Since he didn't have a binary directory for the appropriate platform
`/usr/athena/bin/athdir $HOME` was returning a zero length
string. Bash appears to treat an empty first element as equivalent to
the current directory, putting it at the head of the path.
Below is an untested patch to /usr/athena/lib/init/bashrc that should
fix the problem.
Arun
--- /usr/athena/lib/init/bashrc Sun Jun 9 11:36:58 2002
+++ bashrc2 Thu May 8 22:00:51 2003
@@ -136,7 +136,11 @@
export COREDUMPSIZE_LIMIT=`ulimit -c`
# Standard Athena path
- PATH=`/usr/athena/bin/athdir $HOME`:$athena_path:.
+ if [ -z `/usr/athena/bin/athdir $HOME` ]; then
+ PATH=$athena_path:.
+ else
+ PATH=`/usr/athena/bin/athdir $HOME`:$athena_path:.
+ fi
unset athena_path
# Make sure applications can properly find their appdefs, etc.
