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Full Discussion: Beginner: script headache
Top Forums Shell Programming and Scripting Beginner: script headache Post 302983315 by wisecracker on Monday 10th of October 2016 06:43:48 AM
Old 10-10-2016
Hi Don...

I stand corrected...

Thanks...

EDIT:
Sorry about the edit but......
Just noticed the semi-colons, can you explain why they are needed?

---------- Post updated at 11:43 AM ---------- Previous update was at 10:09 AM ----------

It seems like this does work too...
Code:
#!/usr/local/bin/dash
a=$1
b=$2

if ( [ "$a" = "A" ] || [ "$a" = "a" ] ) && ( [ "$b" = "B" ] || [ "$b" = "b" ] )
then
        echo "Conditions are met."
else
        echo "Conditions are not met."
fi

Results, OSX 10.7.5, default [bash] terminal but calling 'dash'.
Code:
AMIGA:barrywalker~> cd Desktop/Code/Shell
AMIGA:barrywalker~/Desktop/Code/Shell> ./AND_OR.sh
Conditions are not met.
AMIGA:barrywalker~/Desktop/Code/Shell> ./AND_OR.sh a
Conditions are not met.
AMIGA:barrywalker~/Desktop/Code/Shell> ./AND_OR.sh b
Conditions are not met.
AMIGA:barrywalker~/Desktop/Code/Shell> ./AND_OR.sh "" b
Conditions are not met.
AMIGA:barrywalker~/Desktop/Code/Shell> ./AND_OR.sh b ""
Conditions are not met.
AMIGA:barrywalker~/Desktop/Code/Shell> ./AND_OR.sh a ""
Conditions are not met.
AMIGA:barrywalker~/Desktop/Code/Shell> ./AND_OR.sh "" a
Conditions are not met.
AMIGA:barrywalker~/Desktop/Code/Shell> ./AND_OR.sh a a
Conditions are not met.
AMIGA:barrywalker~/Desktop/Code/Shell> ./AND_OR.sh a b
Conditions are met.
AMIGA:barrywalker~/Desktop/Code/Shell> ./AND_OR.sh b a
Conditions are not met.
AMIGA:barrywalker~/Desktop/Code/Shell> ./AND_OR.sh b b
Conditions are not met.
AMIGA:barrywalker~/Desktop/Code/Shell> ./AND_OR.sh A b
Conditions are met.
AMIGA:barrywalker~/Desktop/Code/Shell> ./AND_OR.sh A B
Conditions are met.
AMIGA:barrywalker~/Desktop/Code/Shell> ./AND_OR.sh a B
Conditions are met.
AMIGA:barrywalker~/Desktop/Code/Shell> ./AND_OR.sh B B
Conditions are not met.
AMIGA:barrywalker~/Desktop/Code/Shell> ./AND_OR.sh B A
Conditions are not met.
AMIGA:barrywalker~/Desktop/Code/Shell> ./AND_OR.sh B b
Conditions are not met.
AMIGA:barrywalker~/Desktop/Code/Shell> ./AND_OR.sh B a
Conditions are not met.
AMIGA:barrywalker~/Desktop/Code/Shell> ./AND_OR.sh A A
Conditions are not met.
AMIGA:barrywalker~/Desktop/Code/Shell> ./AND_OR.sh b B
Conditions are not met.
AMIGA:barrywalker~/Desktop/Code/Shell> _

Last edited by wisecracker; 10-10-2016 at 07:44 AM.. Reason: This extra code was supposed to be in a new window, no idea why it is an EDIT!
 

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LEARN ABOUT CENTOS

ppix::regexp::structure::code

PPIx::Regexp::Structure::Code(3)			User Contributed Perl Documentation			  PPIx::Regexp::Structure::Code(3)

NAME

       PPIx::Regexp::Structure::Code - Represent one of the code structures.

SYNOPSIS

	use PPIx::Regexp::Dumper;
	PPIx::Regexp::Dumper->new( 'qr{(?{print "hello sailor
")}smx' )
	    ->print();

INHERITANCE

       "PPIx::Regexp::Structure::Code" is a PPIx::Regexp::Structure.

       "PPIx::Regexp::Structure::Code" has no descendants.

DESCRIPTION

       This class represents one of the code structures, either

	(?{ code })

       or

	(??{ code })

METHODS

       This class provides no public methods beyond those provided by its superclass.

SUPPORT

       Support is by the author. Please file bug reports at <http://rt.cpan.org>, or in electronic mail to the author.

AUTHOR

       Thomas R. Wyant, III wyant at cpan dot org

COPYRIGHT AND LICENSE

       Copyright (C) 2009-2013 by Thomas R. Wyant, III

       This program is free software; you can redistribute it and/or modify it under the same terms as Perl 5.10.0. For more details, see the full
       text of the licenses in the directory LICENSES.

       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.

perl v5.16.3							    2014-06-10					  PPIx::Regexp::Structure::Code(3)
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