From: David Michael Date: Thu, 20 Dec 2012 16:25:42 GMT Subject: Re: [RFC] test: Old shells and physical paths Message-ID: In-Reply-To: Hi, On Thu, Dec 20, 2012 at 12:01 AM, David Aguilar wrote: > Do you know if the differences are relegated to "cd", > or do other common commands such as awk, grep, sed, mktemp, expr, > etc. have similar issues? There are almost certainly going to be incompatibilities with other commands. The system implemented UNIX95 plus some extensions, then they began supporting UNIX03/SUSv3/POSIX.1-2001/whatever for certain commands by using an environment variable to toggle between the incompatible behaviors. Their documentation on the UNIX03 commands indicates it is still only partially supported. For example: "cp" supports "-L" and "-P", but "cd" doesn't. > I wonder if it'd be helpful to have a low-numbered test that checks > the basics needed by the scripted Porcelains and test suite. > It would give us an easy way to answer these questions, and could > be a good way to document (in code) the capabilities we expect. I'd be in favor of something like this as well. Thanks. David P.S. In the meantime, I am handling the "cd" situation by replacing "-P" with "$PHYS" and prepending the following to t/test-lib.sh. set +o logical >/dev/null 2>&1 || PHYS=-P