Dan Muey wrote:
> if you do use strict; and a -w switch and you use $ARGV[0]
> it says "use of uninitiated value at line ..." if $ARGV[n] is empty
>
> What do I need to do with @ARGV or $ARGV[n] to make it not give that
> message?
>
>
> #!/usr/bin/perl -w
> use strict;
>
> if($ARGV[0] =~ /\d/) { print "$ARGV[0] has a number in it\n"; } #
> line 4 print "HI";
>
> #OUTPUT
>
> ./test.pl
> Use of uninitialized value at ./test.pl line 4.
> HI
> ./test.pl hi7
> hi7 has a number in it
> HI
use:
if ( defined $ARGV[0] && ....)
Wags ;)
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