From: richardd@cix.compulink.co.uk (Richard Donkin) Subject: Bash/Perl problem 10 Dec 1996 12:45:02 -0800 Sender: daemon@cygnus.com Approved: cygnus.gnu-win32@cygnus.com Distribution: cygnus Message-ID: Reply-To: richardd@cix.compulink.co.uk Original-To: gnu-win32@cygnus.com Original-Cc: richardd@cix.compulink.co.uk Original-Sender: owner-gnu-win32@cygnus.com Gnu-Win32 B17 Bash will sometimes compete for input from a Perl/Win32 script that has been launched in the foreground and finishes with an exec() - Perl launches the exec'ed program, but bash thinks the subprocess has terminated and starts trying to read command line input. This may well be an artefact of how Perl/Win32 build 110 implements its exec() function - under Win95's command.com, the script works fine, so it is the interaction of bash and Perl/Win32 that causes the problem. The problem occurred when exec'ing VIM 4.5 for Win32 but I don't think that matters, any program that asks for input would do. I will be passing this on to the Perl/Win32 porters but here it is for the record. To reproduce this, here is the script in cut-down form: #!/usr/bin/perl eval 'exec perl -S $0 ${1+"$@"}' if 0; # This line works under bash and command.com: # system ( "c:\\usr\\local\\bin\\vim.exe", @unixpaths); # This line under bash provokes error exec ("c:\\usr\\local\\bin\\vim.exe", @unixpaths); ------- The problem occurs when running the script as 'perl try' or just 'try' from bash. By the way, for any vi users out there, I really recommend looking at VIM - it has online help, multiple windows/buffers, command line history and editing, filename completion, etc, but is highly vi compatible. Emacs users can ignore this announcement :) For more details, see: VIM home page - Richard -- richardd@cix.compulink.co.uk http://www.inside-edge.co.uk/ Inside Edge Consultancy Client/Server and Internet Applications PGP key from: pgp-public-keys@keys.pgp.net -or- http://www.four11.com/ - For help on using this list, send a message to "gnu-win32-request@cygnus.com" with one line of text: "help".