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Categories / Perl / System Functions

 

To turn a feature on or off Use the exclamation point(!)

#Getopt::Long::GetOptions('print_header!' => \$print_header);  #This option sets up --print_header or --noprint_header to turn off the option. #!/usr/bin/perl -w use Getopt::Long; Getopt::Long::GetOptions('print_header!'   => \$print_header); if ( defined( $print_header ) ) {     print "print_header flag set to $print_header\n"; }