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Full Discussion: perl : semi complex if statement question
Top Forums Shell Programming and Scripting perl : semi complex if statement question Post 302372131 by rethink on Tuesday 17th of November 2009 06:29:10 AM
Old 11-17-2009
perl : semi complex if statement question
Hi there

I am trying to write an if statement in perl that will return "SUCCESS" if either of these conditions are true

a) if $changes is greater than 5 AND the $force flag is set to 1

OR

b) if $changes is greater than 0 AND $changes is less than 6


Code:
#!/usr/bin/perl -w

my $force = "0";
my $changes = "7";


if ((($changes gt "5") && ($force = "1")) || (($changes gt "0") && ($changes lt "6"))) {
        print "success\n";
} else {
        print "failure\n";
}

My script seems to be syntactically correct, however, whatever i set the $changes and $force values to, it always reports "success" .... is there something im doing wrong here ??

any help would be great
 

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LEARN ABOUT LINUX

update-bootloader

UPDATE-BOOTLOADER(1)                                    User Contributed Perl Documentation                                   UPDATE-BOOTLOADER(1)

NAME

       update-bootloader - update/change bootloader configuration using
           Bootloader::Tools perl module

SYNOPSIS

       update-bootloader [operation] [options]

       operation is one of --add, --remove or --refresh.

       valid options are --help, --man, --image <file>, --initrd <file>, --xen-kernel <file>, --xen, --default, --previous, --name <string>,
       --force, --force-default.

DESCRIPTION

       update-bootloader will let you modify your bootloader configuration using Bootloader::Tools perl module.

OPERATIONS

       --add   add an new image section.  Needs a call to --refresh to take effect.

       --remove
               remove the specified image section.  Needs a call to --refresh to take effect.

       --refresh
               activate the new config e.g. write boot loader to disk

PARAMETER

       --help  Print a brief help message and exits.

       --man   Prints the manual page and exits.

       --image file
               specify path to kernel image

       --initrd file
               specify path to initrd file

       --xen   specify that you what to add a xen and not a regular image section

       --xen-kernel file
               specify that you what to add a xen section with a specific image.  Implies --xen option.

       --default
               let the new section to be added be the default section if appropriate. Only allowed together with --add operation

       --previous
               set some usuable defaults for image, initrd and name when

       --name string
               specify the name of the section to be added/removed

       --force dont complain, just do the right thing

       --force-default
               force the new section to be added to be the default section. Only allowed together with --add operation

perl v5.12.1                                                        2010-04-22                                                UPDATE-BOOTLOADER(1)
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