@ARGV question

Hi There.

I have this piece of code which I call with the following; array.csh "one"
"two" "three four" "five" "sic cod"

#!/opt/perl-5.6.1/bin/perl -w
$count=0;
print " ARGV $#ARGV\n\n";

while (<$ARGV>) {
        print "count $count $ARGV[$count]\n";
        $count++;
}

I get the following output:
 ARGV 4

count 0 one
count 1 two
count 2 three four
count 3 five
count 4 sic cod
Use of uninitialized value in concatenation (.) or string at array.csh line
9.
count 5 
Use of uninitialized value in concatenation (.) or string at array.csh line
9.
count 6 

Why does the the while loop keep going and not stop? It does stop if I take
the -w out.

I can get it to work like this;

$count=0;
$total = $#ARGV;

while ( $count <= $total ) {
        print "count $count $ARGV[$count]\n";
        $count++;
}

Could someone tell me the best way. I assumed the first option would be the
best but it does not work.

Thanks

Angus 




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• @ARGV question by Laycock, Angus
• RE: @ARGV question by Laycock, Angus
• RE: @ARGV question by Laycock, Angus
• RE: @ARGV question by Laycock, Angus
• RE: @ARGV question by Jenda Krynicky
• RE: @ARGV question by Jonathan E. Paton
• Re: @ARGV question by Jenda Krynicky
• Re: @ARGV question by Jonathan E. Paton