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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

cpanplus::shell

CPANPLUS::Shell(3)					User Contributed Perl Documentation					CPANPLUS::Shell(3)

NAME

       CPANPLUS::Shell - base class for CPANPLUS shells

SYNOPSIS

	   use CPANPLUS::Shell; 	    # load the shell indicated by your
					    # config -- defaults to
					    # CPANPLUS::Shell::Default

	   use CPANPLUS::Shell qw[Classic]  # load CPANPLUS::Shell::Classic;

	   my $ui      = CPANPLUS::Shell->new();
	   my $name    = $ui->which;	    # Find out what shell you loaded

	   $ui->shell;			    # run the ui shell

DESCRIPTION

       This module is the generic loading (and base class) for all "CPANPLUS" shells. Through this module you can load any installed "CPANPLUS"
       shell.

       Just about all the functionality is provided by the shell that you have loaded, and not by this class (which merely functions as a generic
       loading class), so please consult the documentation of your shell of choice.

BUG REPORTS

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

AUTHOR

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

COPYRIGHT

       The CPAN++ interface (of which this module is a part of) is copyright (c) 2001 - 2007, Jos Boumans <kane@cpan.org>. All rights reserved.

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

SEE ALSO

       CPANPLUS::Shell::Default, CPANPLUS::Shell::Classic, cpanp

perl v5.16.3							    2013-05-20							CPANPLUS::Shell(3)
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