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Top Forums Shell Programming and Scripting Strip leading and numbers from a string. Post 302784943 by Don Cragun on Saturday 23rd of March 2013 05:16:44 PM
Old 03-23-2013
If you're using a 1993 or later version of the Korn shell:
Code:
#!/bin/ksh
VAR1="ISOMETHING103"
VAR2="COTHERTHING04"
printf "Initial VAR1=\"%s\", VAR2=\"%s\"\n" "$VAR1" "$VAR2"
VAR1=${VAR1/?/}
VAR2=${VAR2/?/}
VAR1=${VAR1/%[0-9]([0-9][0-9])/\1}
VAR2=${VAR2/%[0-9]([0-9][0-9])/\1}
printf "  Final VAR1=\"%s\", VAR2=\"%s\"\n" "$VAR1" "$VAR2"

will yield:
Code:
Initial VAR1="ISOMETHING103", VAR2="COTHERTHING04"
  Final VAR1="SOMETHING03", VAR2="OTHERTHING04"

If you're using a recent bash:
Code:
#!/bin/bash
VAR1="ISOMETHING103"
VAR2="COTHERTHING04"
printf "Initial VAR1=\"%s\", VAR2=\"%s\"\n" "$VAR1" "$VAR2"
VAR1=${VAR1/?/}
VAR2=${VAR2/?/}
VAR1=${VAR1/%[0-9][0-9][0-9]/${VAR1:$((${#VAR1} - 2))}}
VAR2=${VAR2/%[0-9][0-9][0-9]/${VAR2:$((${#VAR2} - 2))}}
printf "  Final VAR1=\"%s\", VAR2=\"%s\"\n" "$VAR1" "$VAR2"

produces the same output.
Both of these suggestions use parameter expansions that are extensions that are allowed, but not specified, by the standards.
This User Gave Thanks to Don Cragun For This Post:
 

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Pod::Simple::LinkSection(3)				User Contributed Perl Documentation			       Pod::Simple::LinkSection(3)

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, <https://github.com/theory/pod-simple/>. Feel free to fork and contribute, or to clone <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 v5.16.3 2013-05-03 Pod::Simple::LinkSection(3)
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