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Full Discussion: Delete values between 2 patterns
Top Forums Shell Programming and Scripting Delete values between 2 patterns Post 302903046 by Akshay Hegde on Friday 23rd of May 2014 03:47:45 PM
Old 05-23-2014
Hi!

if you have gnu awk you may try this also

Code:
$ awk --re-interval '{match($0,/[^.]+(\.[^.]+){2}/);$0 = substr($0,RSTART,RLENGTH) substr($0,length($1)+1)}1'   file 

192.1.1      blablabala
23.1.A        blablabalbl
5.4.1        blablaba

---------- Post updated at 02:17 AM ---------- Previous update was at 02:11 AM ----------

else we can modify something like this

Code:
$ awk '{split($1,A,/\./);$0= A[1]"."A[2]"."A[3] substr($0,length($1)+1)}1' file

This User Gave Thanks to Akshay Hegde For This Post:
redse171
 

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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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