I want to write a perl script like "gnu less". My perl script accepts input on STDIN or filename(s) as arguments. If both are missing it should print the error message. How do I do this ? The pseudocode will be
---------- IF INPUT ON STDIN ;then Process STDIN ELSE IF ARGUMENT(S) is a file ;then Process content of file(s) ELSE Show usage / help message END IF ------------ Any ideas how this can be done in perl ? Thanks Ram ---------------------------------------------------------- Netcore Solutions Pvt. Ltd. Website: http://www.netcore.co.in Spamtraps: http://cleanmail.netcore.co.in/directory.html ---------------------------------------------------------- -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] <http://learn.perl.org/> <http://learn.perl.org/first-response>