Hi

On your advice I looked at the versions of Perl on my Mac.

If I do a 'which perl' I get /opt/local/bin/perl.

However I also found another version of Perl at /usr/bin/perl.

So I found the following:

This does not work

/usr/bin/perl < app.pl

This works!

/opt/local/bin/perl < app.pl

My Mac is rather old and I have messed around with it on numerous occasions. Both versions appear to be v5.8.8.

So I cannot explain what is broken, but at least my little app works now.

Mark