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Full Discussion: awk to search for specific line and replace nth column
Top Forums Shell Programming and Scripting awk to search for specific line and replace nth column Post 302878462 by ncwxpanther on Friday 6th of December 2013 09:02:33 AM
Old 12-06-2013
Thanks RudiC

"2013" may exist in various places in column 1. So I need the script to only look for it in the last 4 fields. I recently got a tip on searching for that string -

Code:
awk 'substr($1,length($1)-3) <= 2013'

Would something like that work in this case?

---------- Post updated at 09:02 AM ---------- Previous update was at 08:43 AM ----------

I was able to get this command to work for the most part

Code:
awk 'substr($1,length($1)-3) == 2013 {$13 = -9.99; for (i=2; i<=NF; i++) $i=$i+0}1' CONVFMT="%6.2f" file

But some of the formatting is not correct.

For instance -

Code:
AA02700012013   1.98   3.09   2.29   2.44   5.48   7.04   5.90   3.34   5.07   1.55   3.64  -9.99  41.87
BB02800012013 3   2.89   2.89   2.60   3.82   9.49   5.27   4.66   2.13   1.99   2.79  -9.99  41.53
CC02900012013   0.50   0.39   0.21   0.18   0.22   0.65   3.50   2.16   4.16   0.43   0.88  -9.99  13.28
DD03000012013   2.12   2.38   1.80   3.07   4.31   7.45   4.62   3.84   3.46   3.18   3.78  -9.99  40.03
EE03100012013   4.69   4.09   2.67   4.68   3.96 9   8.41   4.77   2.80   2.20   3.46  -9.99  50.74

How do I correct so that the whole digits have 2 decimal precision?
 

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LEARN ABOUT DEBIAN

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

Perl::Critic::Policy::BuiltinFunctions::ProhibitLvalueSuUser(Contributed Perl DocPerl::Critic::Policy::BuiltinFunctions::ProhibitLvalueSubstr(3pm)

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 v5.14.2							    2012-06-07	 Perl::Critic::Policy::BuiltinFunctions::ProhibitLvalueSubstr(3pm)
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