change && to || > -----Original Message----- > From: Admin-Stress [mailto:[EMAIL PROTECTED]] > Sent: Thursday, September 26, 2002 10:31 AM > To: Perl beginners > Subject: checking parameters ... > > > I wrote a simple script like this : > > #!/usr/bin/perl > > if (($ARGV[0] eq "") && ($ARGV[1] eq "") && ($ARGV[2] eg "")) { > print "You must give me 3 parameters\n"; > exit; > } > > Then, I tested like with 1 .. OR 2 ... OR 3 parameters, it > did not print the text "You must...". > > Why this happened? How to detect "null" parameters? is "" > equal to "null"? > > I can use "if (scalar(@ARGV) < 3) {...}" but that not the case. > > Thanks for help me to explain this. > > newbie > > __________________________________________________ > Do you Yahoo!? > New DSL Internet Access from SBC & Yahoo! > http://sbc.yahoo.com > > -- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] >
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