in reply to question about getopt
perldoc -f defined
Ieturns a Boolean value telling whether EXPR has a value other than the undefined value undef. If EXPR is not present, $_ will be checked.
In Section
Seekers of Perl Wisdom
in reply to question about getopt
Ieturns a Boolean value telling whether EXPR has a value other than the undefined value undef. If EXPR is not present, $_ will be checked.