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Full Discussion: Depending upon character at particular position, string needs to be appended
Top Forums UNIX for Dummies Questions & Answers Depending upon character at particular position, string needs to be appended Post 302263025 by Franklin52 on Sunday 30th of November 2008 09:15:49 AM
Old 11-30-2008
The code is not tested but it should give you the direction to get the desired output, play around with it:

Code:
awk 'BEGIN{a["J"]="Jaya";a["R"]="Ravi";a["S"]="Satish"}
substr($0,7,1)=="J" || substr($0,7,1)=="R" || substr($0,7,1)=="S" {    # For the letters J, R, S
  printf "%-256s\n", $1" "substr($2,2)" "a[substr($2,1,1)]
  next
}
{ s=substr($0,39,20); sub(/ *$/, "", s)            # s = trimmed string of pos 39-58 for other letters
  if(length(s)==9) {
    printf "%-256s\n", $0 " prakash"
  }
  else if(length(s)==16) {
    printf "%-256s\n", $0 " Dan"
  }
  else {
    printf "%-256s\n", $0 " Shelly"
  }
}' file

Last edited by Franklin52; 11-30-2008 at 10:46 AM.. Reason: typo "length"
 

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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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