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Full Discussion: Calculating average
Top Forums UNIX for Dummies Questions & Answers Calculating average Post 302892298 by anbu23 on Wednesday 12th of March 2014 03:33:54 AM
Old 03-12-2014
Code:
$ awk '
> BEGIN {FS=","} {sum=0; n=0;i=3
>      while (i<=5) {
>  sum+=$i;
> i++;
> ++n }
> print $0,"sum:"sum,"count:"n,"avg:"sum/n}' file
111,victor,48,12,36 sum:96 count:3 avg:32
342,Peter,54,58,30 sum:142 count:3 avg:47.3333
476,Scott,25,36,48 sum:109 count:3 avg:36.3333
567,Patty,74,17,95 sum:186 count:3 avg:62

This User Gave Thanks to anbu23 For This Post:
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LEARN ABOUT REDHAT

sum

sum(n)									sum								    sum(n)

NAME

       sum - calculate a sum(1) compatible checksum

SYNOPSIS

       package require Tcl 8.2

       package require sum ?1.0?

       ::crc::sum ?-format format? message

       ::crc::sum ?-format format? -filename file

DESCRIPTION

       This  package  provides	a Tcl-only implementation of the sum(1) command which calculates a 16 bit checksum value from the input data.  The
       BSD sum algorithm is used by default but the SysV algorithm is also available.

COMMANDS

       ::crc::sum ?-format format? message

       ::crc::sum ?-format format? -filename file
	      The command takes string data or a file name and returns a checksum value calculated using the sum(1) algorithm. The result is  for-
	      matted using the format(n) specifier provided or as an unsigned integer (%u) by default.

OPTIONS

       -filename name
	      Return a checksum for the file contents instead of for parameter data.

       -format string
	      Return the checksum using an alternative format template.

EXAMPLES

       % crc::sum "Hello, World!"
       37287

       % crc::sum -format 0x%X "Hello, World!"
       0x91A7

       % crc::sum -file sum.tcl
       13392

SEE ALSO

       sum(1), cksum(n), crc32(n)

AUTHORS

       Pat Thoyts

KEYWORDS

       sum, cksum, checksum, crc, crc32, cyclic redundancy check, data integrity, security

crc									1.0								    sum(n)
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