> ps from Cygwin is the historically older version, it's using another > mechanism to get to all the date and, last but not least, it's a core > Cygwin tool under the Cygwin license. Feel free to use procps as ps > by aliasing, but Cygwin's ps will not go away and it can't use procps > sources for licensing reasons. > > Corinna
While aliasing does work for interactive and shell scripts, it does not work for Perl backtick expressions. As you can see below, invoking 'ps' from a Perl script still results in the historically older version being used. $ alias ps='/bin/procps.exe' $ ps --version procps version 3.2.7 $ perl -we 'print `ps --version`' ps (cygwin) 1.11 Process Statistics Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002 Red Hat, Inc. Compiled on Dec 14 2007 Making a hard link will work, but this adds another layer of complexity for running a script in systems where the user does not have administrative permission. This would require a test in the initial stages of installation with a hard stop if the hard link does not exist. This will generate a delay in installation or usage while a link is created. Only coding specifically to Cygwin 'procps.exe' is sure to work. This still requires an initial test to ensure that the procps package is installed and a delay if it is not. I see that you have used the "licensing reasons' phrase. Does that mean that this distasteful situation has no hope of ever improving? Where can I find a list of Cygwin programs in this situation? Is 'ps' the only one? Are there others? Please advise. Thanks. -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
