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Top Forums Shell Programming and Scripting How to Check Multiple conditions in IF statement? Post 302976802 by mohtashims on Wednesday 6th of July 2016 10:58:50 AM
Old 07-06-2016
Quote:
Originally Posted by RudiC
man bash: Command substitution allows the output of a command to replace the command name, i.e will make the command's stdout available for e.g. variable assignment. cmp will not output anything if files are identical, or some explanatory text if not; neither of which you want to (or can) test for. You'd go for the exit code instead. Try
Code:
if cmp $e1 $e2 && [ "$e1" != "$e2" ]; then echo same; else echo diff; fi

Trying to assign the entry variables like you showed in post#1 will fail as the while loop reading from a pipe is executed in a subshell that can't return it's variables to the parent shell, resulting in entry1 and entry2 not being set in the parent shell. Try "process substitution" for the ls command, or put ls's output into a file and read the variables from there.
This worked !! Thank you ...
 

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Net::Sieve::Script::Condition(3pm)			User Contributed Perl Documentation			Net::Sieve::Script::Condition(3pm)

NAME
Net::Sieve::Script::Condition - parse and write conditions in sieve scripts SYNOPSIS
use Net::Sieve::Script::Condition; my $cond = Net::Sieve::Script::Condition->new('header'); $cond->match_type(':contains'); $cond->key_list('"[Test4]"'); $cond->header_list('"Subject"'); print $cond->write(); or my $cond = Net::Sieve::Script::Condition->new( 'anyof ( header :contains "Subject" "[Test]", header :contains "Subject" "[Test2]")' ); print $cond->write(); DESCRIPTION
Parse and write condition part of Sieve rules, see Net::Sieve::Script. Support RFC 5228, 5231 (relationnal) and regex draft CONSTRUCTOR
new Match and set accessors for each condition object in conditions tree, "test" is mandatory Internal id : id for condition, set by creation order condition : array of sub conditions parent : parent of sub condition AllConds : array of pointers for all conditions Condition parts not : 'not' or nothing test : 'header', 'address', 'exists', ... key_list : "subject" or ["To", "Cc"] header_list : "text" or ["text1", "text2"] address_part : ':all ', ':localpart ', ... match_type : ':is ', ':contains ', ... comparator : string part METHODS
equals Purpose : test conditions Return : 1 on equals conditions write Purpose : write rule conditions in text format Return : multi-line formated text AUTHOR
Yves Agostini CPAN ID: YVESAGO Univ Metz agostini@univ-metz.fr http://www.crium.univ-metz.fr COPYRIGHT
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 v5.10.0 2008-09-15 Net::Sieve::Script::Condition(3pm)
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