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Filename : skel1.pl
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#!/usr/bin/perl -w

# Skeleton for an application using Getopt::Long.

# Author          : Johan Vromans
# Created On      : Tue Sep 15 15:59:04 1992
# Last Modified By: Johan Vromans
# Last Modified On: Tue Jul 16 10:02:16 2019
# Update Count    : 44
# Status          : Unknown, Use with caution!

################ Common stuff ################

use strict;

# Package or program libraries, if appropriate.
# $LIBDIR = $ENV{'LIBDIR'} || '/usr/local/lib/sample';
# use lib qw($LIBDIR);
# require 'common.pl';

# Package name.
my $my_package = 'Sciurix';
# Program name and version.
my ($my_name, $my_version) = qw( MyProg 0.01 );

################ Command line parameters ################

use Getopt::Long 2.13;

# Command line options.
my $verbose = 1;		# verbose processing

# Development options (not shown with -help).
my $debug = 0;			# debugging
my $trace = 0;			# trace (show process)
my $test = 0;			# test mode.

# Process command line options.
app_options();

# Post-processing.
$trace |= ($debug || $test);

################ Presets ################

my $TMPDIR = $ENV{TMPDIR} || $ENV{TEMP} || '/usr/tmp';

################ The Process ################

exit 0;

################ Subroutines ################

sub app_options {
    my $help = 0;		# handled locally
    my $ident = 0;		# handled locally

    # Process options, if any.
    # Make sure defaults are set before returning!
    return unless @ARGV > 0;

    if ( !GetOptions(
		     'ident'	=> \$ident,
		     'verbose+'	=> \$verbose,
		     'quiet'	=> sub { $verbose = 0 },
		     'trace'	=> \$trace,
		     'help|?'	=> \$help,
		     'debug'	=> \$debug,
		    ) or $help )
    {
	app_usage(2);
    }
    app_ident() if $ident;
}

sub app_ident {
    print STDERR ("This is $my_package [$my_name $my_version]\n");
}

sub app_usage {
    my ($exit) = @_;
    app_ident();
    print STDERR <<EndOfUsage;
Usage: $0 [options] [file ...]
   --ident		shows identification
   --help		shows a brief help message and exits
   --verbose		provides more verbose information
   --quiet		runs as silently as possible
EndOfUsage
    exit $exit if defined $exit && $exit != 0;
}