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Re: Counting lines in a file containing exact fields

To: nv-l@lists.tivoli.com
Subject: Re: Counting lines in a file containing exact fields
From: Steven Thornhill <Steven.Thornhill@SOUTHERNELECTRIC.CO.UK>
Date: Thu, 18 Feb 1999 15:17:32 +0000
Reply-to: Discussion of IBM NetView and POLYCENTER Manager on NetView <NV-L@UCSBVM.UCSB.EDU>
Sender: Discussion of IBM NetView and POLYCENTER Manager on NetView <NV-L@UCSBVM.UCSB.EDU>
     You can create an array by awking the second field and sorting
     (unique), then use this array with a loop to count the number of lines
     that match each element of the array. If you need an outline of a
     script let me know.

     Steve


______________________________ Reply Separator _________________________________
Subject: Counting lines in a file containing exact fields
Author:  Lucy Premus <lpremus@METLIFE.COM> at SEInternet
Date:    18/02/99 10:06


Is there a korn shell function to count lines in a file that have one field
thats the same.  For example, if my file looks as follows:

server1   NYHO
server2   NYHO
server3   NYHO
server4   RISC
server5   RISC
server6  NYMLB
server7  NYMLB
server8  NYMLB
server9  NYMLB

I want the script to read the file and count up that there are 3 NYHO, 2 RISC,
and 4 NYMLB.  However theres a catch, in reality my files will be much larger
than this containing much more than 3 different instances.  I don't want to have
to compare each line to the literal (ie. NYHO, RISC or NYMLB) because theres
just too many of them.  Is there any easier way?

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