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Full Discussion: ksh
Top Forums Shell Programming and Scripting ksh Post 302934578 by shaho87 on Monday 9th of February 2015 12:50:05 AM
Old 02-09-2015
ksh
Hi Dears

kindly I am new here ...I want to ask your help ...

I want to write AWK command when enter date like 20140129 plus 9 then it gives me 20140207 I wrote below but the result was wrong

Code:
#!/bin/ksh

echo "please input the data:"
read a


if echo $a|awk '{if (substr($1,5,1)=="5") {substr($1,6,2)++} else {print "wrong"}}'

Last edited by vbe; 02-09-2015 at 04:32 AM.. Reason: spelling
 

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LEARN ABOUT CENTOS

perl::critic::policy::builtinfunctions::prohibitlvaluesubstr

Perl::Critic::Policy::BuiltinFunctions::ProhibitLvalueSuUser(Contributed Perl DocumPerl::Critic::Policy::BuiltinFunctions::ProhibitLvalueSubstr(3)

NAME

       Perl::Critic::Policy::BuiltinFunctions::ProhibitLvalueSubstr - Use 4-argument "substr" instead of writing "substr($foo, 2, 6) = $bar".

AFFILIATION

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

DESCRIPTION

       Conway discourages the use of "substr()" as an lvalue, instead recommending that the 4-argument version of "substr()" be used instead.

	   substr($something, 1, 2) = $newvalue;     # not ok
	   substr($something, 1, 2, $newvalue);      # ok

       The four-argument form of "substr()" was introduced in Perl 5.005.  This policy does not report violations on code which explicitly
       specifies an earlier version of Perl (e.g. "use 5.004;").

CONFIGURATION

       This Policy is not configurable except for the standard options.

SEE ALSO

       "substr" in perlfunc (or "perldoc -f substr").

       "4th argument to substr" in perl5005delta

AUTHOR

       Graham TerMarsch <graham@howlingfrog.com>

COPYRIGHT

       Copyright (c) 2005-2011 Graham TerMarsch.  All rights reserved.

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

perl v5.16.3							    2014-06-09	   Perl::Critic::Policy::BuiltinFunctions::ProhibitLvalueSubstr(3)
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