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Full Discussion: Compact script with array - Good idea?
Top Forums Shell Programming and Scripting Compact script with array - Good idea? Post 302676301 by Corona688 on Tuesday 24th of July 2012 11:29:32 AM
Old 07-24-2012
Code:
#!/bin/bash
# Requires bash, don't use other shells

MAKE_OPTS="-j 4"
CONFIG_OPTS="--prefix=/opt"

url_nginx="http://nginx.org/download/nginx-1.2.2.tar.gz"
nginx_MAKE="-j 3" # Override default MAKE_OPTS

url_supervisor="http://pypi.python.org/packages/source/s/supervisor/supervisor-3.0a12.tar.gz"
supervisor_CONFIG="--prefix=/usr" # Override default CONFIG_OPTS

for PACKAGE in nginx supervisor
do
        # Check for package_MAKE variable, use default $MAKE_OPTS if absent
        MOPTS="${PACKAGE}_MAKE"
        MOPTS="${!MOPTS:-${MAKE_OPTS}}"
        # Check for package_CONFIG variable, use default $CONFIG_OPTS if absent
        COPTS="${PACKAGE}_CONFIG"
        COPTS="${!COPTS:-${CONFIG_OPTS}}"

        PACKAGE="url_${PACKAGE}"
        echo wget "${!PACKAGE}"
        echo configure $COPTS ... # Note not quoted
        echo make $MOPTS ... # Note not quoted
done

 

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LEARN ABOUT MOJAVE

module::loaded

Module::Loaded(3pm)					 Perl Programmers Reference Guide				       Module::Loaded(3pm)

NAME

       Module::Loaded - mark modules as loaded or unloaded

SYNOPSIS

	   use Module::Loaded;

	   $bool = mark_as_loaded('Foo');   # Foo.pm is now marked as loaded
	   $loc  = is_loaded('Foo');	    # location of Foo.pm set to the
					    # loaders location
	   eval "require 'Foo'";	    # is now a no-op

	   $bool = mark_as_unloaded('Foo'); # Foo.pm no longer marked as loaded
	   eval "require 'Foo'";	    # Will try to find Foo.pm in @INC

DESCRIPTION

       When testing applications, often you find yourself needing to provide functionality in your test environment that would usually be provided
       by external modules. Rather than munging the %INC by hand to mark these external modules as loaded, so they are not attempted to be loaded
       by perl, this module offers you a very simple way to mark modules as loaded and/or unloaded.

FUNCTIONS

   $bool = mark_as_loaded( PACKAGE );
       Marks the package as loaded to perl. "PACKAGE" can be a bareword or string.

       If the module is already loaded, "mark_as_loaded" will carp about this and tell you from where the "PACKAGE" has been loaded already.

   $bool = mark_as_unloaded( PACKAGE );
       Marks the package as unloaded to perl, which is the exact opposite of "mark_as_loaded". "PACKAGE" can be a bareword or string.

       If the module is already unloaded, "mark_as_unloaded" will carp about this and tell you the "PACKAGE" has been unloaded already.

   $loc = is_loaded( PACKAGE );
       "is_loaded" tells you if "PACKAGE" has been marked as loaded yet.  "PACKAGE" can be a bareword or string.

       It returns falls if "PACKAGE" has not been loaded yet and the location from where it is said to be loaded on success.

BUG REPORTS

       Please report bugs or other issues to <bug-module-loaded@rt.cpan.org<gt>.

AUTHOR

       This module by Jos Boumans <kane@cpan.org>.

COPYRIGHT

       This library is free software; you may redistribute and/or modify it under the same terms as Perl itself.

perl v5.18.2							    2013-11-04						       Module::Loaded(3pm)
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