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Full Discussion: File manipulation place 0 before the number using sed
Top Forums UNIX for Beginners Questions & Answers File manipulation place 0 before the number using sed Post 303039603 by RavinderSingh13 on Thursday 10th of October 2019 05:33:59 AM
Old 10-10-2019
Hello akopocpoypoy,

Or adding 1 more approach where no need to hard code string again and again, simply keep a string into a variable Oct in this case and need not to change anything in code.
Code:
awk -v var="Oct" '
{
  while(match($0,var" [0-9]+")){
    val=sprintf("%s %02d",substr($0,RSTART,4),substr($0,RSTART+3,RLENGTH-3))
    sub(var " [0-9]+",val)
  }
}
1
'   Input_file

Thanks,
R. Singh
 

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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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