Hi Sravani
The following takes a single argument from command line and shows an usage message upon wrong input

use Getopt::Long;

sub usage {
 print "\nUsage: thisProgram -f <expectedUserInput>\n";
 exit(1);
}

GetOptions("f=s=>\$userInput");
&usage() if (!defined($userInput));

[download]
Cheers,
Gaurav
"Wisdom begins in wonder" - Socrates, philosopher

In reply to Re: command line arguments by megaurav2002
in thread command line arguments by sravani

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