I did, finally, find two solutions which work on both Cygwin and Solaris, which is pretty much all I need. In case someone is interested, here are the solutions.
Alternative 1 ============= This forces the script to be interpreted by "sh". : eval 'exec perl -wS $0 ${1+"$@"}' if 0; I am not sure why replacing ":" with "#!/bin/sh" doesn't work though, but doing so gives on Solaris "-wS: bad option(s)" and on Cygwin: "Illegal option -w". Alternative 2 ============= This checks to see what kind of syntax the running shell accepts (Bourne shell style or C shell style) and then calls perl in a way appropriate for the running shell. eval '(exit $?0)' && eval 'exec perl -wS $0 ${1+"$@"}' & eval 'exec perl -wS $0 $argv:q' if 0; Peter -- Peter J. Acklam - [EMAIL PROTECTED] - http://home.online.no/~pjacklam -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Bug reporting: http://cygwin.com/bugs.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/