If condition to check null variable Post: 302831399

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check for NULL variable

Hello I want to check for NULL variable.. but this is not working..please help thanks in advance esham

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Hi, i wrote If Conditions in my script, it's returns null and some values. but i am unable to find when Null value getting. bec we need modification according null vales. pls help me on this.

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korn shell If then update_smartcare_user_password "$u_id" else echo "Not a database user" fi i get this error Syntax error at line *** : `then' is not expected. what should i do. I want to check whether $a is null or not.

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hi, i have 3 lines of output , if second line exists then only condition within the if loop has to exeute other wise it has exit from loop. i had tried like this but not getting please help me ... Code: if ; then echo "success" else echo "" Use code tags please,...

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Check for null

Hi Champs!!! im a newbie in unix, need ur expert help for my problem... I need to search if there are any "NULL" entries in the string String without Null Str1: 203652|1000003653|tellt|RUPV|4649|1|07/28/2011 01:56:12 String with Null (RUPV is removed) Str2:...

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HELP with AWK one-liner. Need to employ an If condition inside AWK to check for array variable ?

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Checking for null condition in a UNIX variable

i have this code for i in `cat sql_output.txt` do -- some script commands done sql_output.txt has 1 column with employee_ids If the sql_output.txt is null then the do loop should not execute. How can i implement this. for i in `cat sql_output.txt` If i is null or empty then ...

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perl::critic::policy::variables::prohibitperl4packagenames

Perl::Critic::Policy::Variables::ProhibitPerl4PackageNamUser)Contributed Perl DocumenPerl::Critic::Policy::Variables::ProhibitPerl4PackageNames(3)

NAME

       Perl::Critic::Policy::Variables::ProhibitPerl4PackageNames - Use double colon (::) to separate package name components instead of single
       quotes (').

AFFILIATION

       This Policy is part of the core Perl::Critic distribution.

DESCRIPTION

       Perl 5 kept single quotes ("'") as package component separators in order to remain backward compatible with prior "perl"s, but advocated
       using double colon ("::") instead.  In the more than a decade since Perl 5, double colons have been overwhelmingly adopted and most people
       are not even aware that the single quote can be used in this manner.  So, unless you're trying to obfuscate your code, don't use them.

	   package Foo::Bar::Baz;    #ok
	   package Foo'Bar'Baz;      #not ok

CONFIGURATION

       This Policy is not configurable except for the standard options.

SEE ALSO

       perlmod

AUTHOR

       Elliot Shank "<perl@galumph.com>"

COPYRIGHT

       Copyright (c) 2007-2011 Elliot Shank.

       This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.  The full text of this license
       can be found in the LICENSE file included with this module.

perl v5.16.3							    2014-06-09	     Perl::Critic::Policy::Variables::ProhibitPerl4PackageNames(3)

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

check for NULL variable

Discussion started by: esham

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How can find Null value in If condition

Discussion started by: koti_rama

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how to check null variable

Discussion started by: sachin.gangadha

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How to compare null and space using single if condition

Discussion started by: jayakumarrt