> Hello All, > > This is surely a beginner's question and may even sound silly. :) > > How do you make a Perl script skip an input parameter if it is not > present. > Let me explain it through an example. > > EG: > #!/usr/bin/perl > use strict; > use warnings; > no warnings 'uninitialized'; > print "1 - $ARGV[0]\n"; > print "2 - $ARGV[1]\n"; > print "3 - $ARGV[2]\n"; > > When I execute this as - perl Input.pl one two three > > I get following O/P > > 1 - one > 2 - two > 3 - three > > Now suppose I don't want to give second parameter - perl Input.pl one > three > > I get following O/P: > > 1 - one > 2 - three > 3 - > > My requirement is - > > 1 - one > 2 - > 3 - three > > I tried giving extra white space but still 'three' is being taken as > 2nd > input parameter and I guess white space is a default delimiter. Is > there any > special delimiter which I can use to skip an I/P parameter.
I know what you are asking, and I have seen the answer by Shlomi Fish but wonder if using Getopt::Std would not be another avenue to explore. Or for that matter, Getopt::Long -- Owen -- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected] http://learn.perl.org/
