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Full Discussion: Vlookup using awk without exact match
Top Forums Shell Programming and Scripting Vlookup using awk without exact match Post 303015985 by Chubler_XL on Tuesday 17th of April 2018 05:46:59 PM
Old 04-17-2018
Quote:
Originally Posted by ranjancom2000
Thanks it was working. How i can get update the active_server server list if the server not found from all-server list
Can you be a bit more specific on your requirements here?

Quote:
Originally Posted by ranjancom2000
Also Vlookup was not able to find the server if it is uppercase is it possible to lookup without case sensitive.
Best bet is it to convert both strings to lower case before using index:

Code:
awk '
  NR==FNR{A[tolower($1)];next}
  { for(active_server in A)
       if(index(tolower($3), active_server) > 0) {
          $3 = "needtotakesnap " $3
          break
       }
  }1' /home/Others/active-server.txt /home/Others/all-server

 

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LEARN ABOUT CENTOS

tolower

TOUPPER(3)						     Linux Programmer's Manual							TOUPPER(3)

NAME

       toupper, tolower - convert letter to upper or lower case

SYNOPSIS

       #include <ctype.h>

       int toupper(int c);
       int tolower(int c);

DESCRIPTION

       toupper() converts the letter c to upper case, if possible.

       tolower() converts the letter c to lower case, if possible.

       If c is not an unsigned char value, or EOF, the behavior of these functions is undefined.

RETURN VALUE

       The value returned is that of the converted letter, or c if the conversion was not possible.

CONFORMING TO

       C89, C99, 4.3BSD.

BUGS

       The  details  of  what constitutes an uppercase or lowercase letter depend on the current locale.  For example, the default "C" locale does
       not know about umlauts, so no conversion is done for them.

       In some non-English locales, there are lowercase letters with no corresponding uppercase equivalent; the German sharp s is one example.

SEE ALSO

       isalpha(3), setlocale(3), towlower(3), towupper(3), locale(7)

COLOPHON

       This page is part of release 3.53 of the Linux man-pages project.  A description of the project, and information about reporting bugs,  can
       be found at http://www.kernel.org/doc/man-pages/.

GNU
								    1993-04-04								TOUPPER(3)
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