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Shell Programming and Scripting
KSH doubt !!!
Post 9531 by Kelam_Magnus on Monday 29th of October 2001 12:33:42 PM
10-29-2001
goto USE CASE
Witt,
A very nice construct that is far superior to GOTO is CASE. CASE also prevents dead ends and allows for many outcomes depending on the variable.
You can set it up to have infinite conditions, 256 max I believe, to perform various tasks depending on the input to the CASE statement.
Just define $VAR above from some action and CASE will do the rest!
case $VAR in
VAR1 ) Do some statement ;;
VAR2 ) Do different statement ;;
VAR3 ) Do another different statement;;
* ) Do default statement and exit from CASE ;;
esac
A very nice construct that is far superior to GOTO is CASE. CASE also prevents dead ends and allows for many outcomes depending on the variable.
You can set it up to have infinite conditions, 256 max I believe, to perform various tasks depending on the input to the CASE statement.
Just define $VAR above from some action and CASE will do the rest!
case $VAR in
VAR1 ) Do some statement ;;
VAR2 ) Do different statement ;;
VAR3 ) Do another different statement;;
* ) Do default statement and exit from CASE ;;
esac
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LEARN ABOUT MOJAVE
ppi::statement::null
PPI::Statement::Null(3) User Contributed Perl Documentation PPI::Statement::Null(3) NAME
PPI::Statement::Null - A useless null statement SYNOPSIS
my $foo = 1; ; # <-- Null statement my $bar = 1; INHERITANCE
PPI::Statement::Null isa PPI::Statement isa PPI::Node isa PPI::Element DESCRIPTION
"PPI::Statement::Null" is a utility class designed to handle situations where PPI encounters a naked statement separator. Although strictly speaking, the semicolon is a statement separator and not a statement terminator, PPI considers a semicolon to be a statement terminator under most circumstances. In any case, the null statement has no purpose, and can be safely deleted with no ill effect. METHODS
"PPI::Statement::Null" has no additional methods beyond the default ones provided by PPI::Statement, PPI::Node and PPI::Element. SUPPORT
See the support section in the main module. AUTHOR
Adam Kennedy <adamk@cpan.org> COPYRIGHT
Copyright 2001 - 2011 Adam Kennedy. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. The full text of the license can be found in the LICENSE file included with this module. perl v5.18.2 2011-02-25 PPI::Statement::Null(3)