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Full Discussion: ksh field math
Top Forums Shell Programming and Scripting ksh field math Post 302909742 by Scrutinizer on Friday 18th of July 2014 09:52:52 PM
Old 07-18-2014
With awk this is straightforward:
Code:
awk '{A[$1]+=$3} END{for(i in A) print i,A[i]}' FS=, OFS=, file

You can call this from ksh.

If you want to do this in ksh only, can you post what you have tried and where you are stuck?
Also what is your OS and version and is this ksh88 or ksh93 ?
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suspend(1)							   User Commands							suspend(1)

NAME
suspend - shell built-in function to halt the current shell SYNOPSIS
sh suspend csh suspend ksh suspend DESCRIPTION
sh Stops the execution of the current shell (but not if it is the login shell). csh Stop the shell in its tracks, much as if it had been sent a stop signal with ^Z. This is most often used to stop shells started by su. ksh Stops the execution of the current shell (but not if it is the login shell). ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ SEE ALSO
csh(1), kill(1), ksh(1), sh(1), su(1M), attributes(5) SunOS 5.10 15 Apr 1994 suspend(1)
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