11-19-2011
I was trying with [ ] and if statements but your way is simple and works, great stuff!
---------- Post updated at 07:20 AM ---------- Previous update was at 07:10 AM ----------
I was trying with [ ] and if statements but your way is simple and works, great stuff!
actually it works great when there is no parameter VAR# predefined but when parameter is predefined script don show it . . . .
PHP Code:
#!/bin/bash
# write a script that takes command line variables and prints out the
# number of parameters passed in and lists them out on separated lines
VAR1=
VAR2="200"
VAR3=500
[ -z "$VAR1" ] && read -p "Enter VAR1 value:" VAR1
[ -z "$VAR2" ] && read -p "Enter VAR1 value:" VAR2
[ -z "$VAR3" ] && read -p "Enter VAR1 value:" VAR3
exit 0
like here it prompts to enter VAR1
but VAR2 and VAR3 are predefined and are not shown
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LEARN ABOUT SUSE
pod::simple::linksection
Pod::Simple::LinkSection(3pm) Perl Programmers Reference Guide Pod::Simple::LinkSection(3pm)
NAME
Pod::Simple::LinkSection -- represent "section" attributes of L codes
SYNOPSIS
# a long story
DESCRIPTION
This class is not of interest to general users.
Pod::Simple uses this class for representing the value of the "section" attribute of "L" start-element events. Most applications can just
use the normal stringification of objects of this class; they stringify to just the text content of the section, such as "foo" for
"L<Stuff/foo>", and "bar" for "L<Stuff/bI<ar>>".
However, anyone particularly interested in getting the full value of the treelet, can just traverse the content of the treeleet
@$treelet_object. To wit:
% perl -MData::Dumper -e
"use base qw(Pod::Simple::Methody);
sub start_L { print Dumper($_[1]{'section'} ) }
__PACKAGE__->new->parse_string_document('=head1 L<Foo/bI<ar>baz>>')
"
Output:
$VAR1 = bless( [
'',
{},
'b',
bless( [
'I',
{},
'ar'
], 'Pod::Simple::LinkSection' ),
'baz'
], 'Pod::Simple::LinkSection' );
But stringify it and you get just the text content:
% perl -MData::Dumper -e
"use base qw(Pod::Simple::Methody);
sub start_L { print Dumper( '' . $_[1]{'section'} ) }
__PACKAGE__->new->parse_string_document('=head1 L<Foo/bI<ar>baz>>')
"
Output:
$VAR1 = 'barbaz';
SEE ALSO
Pod::Simple
SUPPORT
Questions or discussion about POD and Pod::Simple should be sent to the pod-people@perl.org mail list. Send an empty email to
pod-people-subscribe@perl.org to subscribe.
This module is managed in an open GitHub repository, http://github.com/theory/pod-simple/ <http://github.com/theory/pod-simple/>. Feel free
to fork and contribute, or to clone git://github.com/theory/pod-simple.git <git://github.com/theory/pod-simple.git> and send patches!
Patches against Pod::Simple are welcome. Please send bug reports to <bug-pod-simple@rt.cpan.org>.
COPYRIGHT AND DISCLAIMERS
Copyright (c) 2004 Sean M. Burke.
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
This program is distributed in the hope that it will be useful, but without any warranty; without even the implied warranty of
merchantability or fitness for a particular purpose.
AUTHOR
Pod::Simple was created by Sean M. Burke <sburke@cpan.org>. But don't bother him, he's retired.
Pod::Simple is maintained by:
o Allison Randal "allison@perl.org"
o Hans Dieter Pearcey "hdp@cpan.org"
o David E. Wheeler "dwheeler@cpan.org"
perl v5.12.1 2010-05-07 Pod::Simple::LinkSection(3pm)