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Full Discussion: Adding the individual columns of a matrix.
Top Forums Shell Programming and Scripting Adding the individual columns of a matrix. Post 302520778 by drl on Monday 9th of May 2011 07:23:25 AM
Old 05-09-2011
Hi.

An available utility, numsum, part of num-utils:
Code:
#!/usr/bin/env bash

# @(#) s1	Demonstrate use of numsum.

# Utility functions: print-as-echo, print-line-with-visual-space, debug.
pe() { for i;do printf "%s" "$i";done; printf "\n"; }
pl() { pe;pe "-----" ;pe "$*"; }
db() { ( printf " db, ";for i;do printf "%s" "$i";done; printf "\n" ) >&2 ; }
db() { : ; }
C=$HOME/bin/context && [ -f $C ] && . $C 

FILE=${1-data1}

pl " Data file $FILE:"
cat $FILE

pl " Results with numsum:"
/usr/bin/numsum -c $FILE

exit 0

producing:
Code:
% ./s1

Environment: LC_ALL = C, LANG = C
(Versions displayed with local utility "version")
OS, ker|rel, machine: Linux, 2.6.26-2-amd64, x86_64
Distribution        : Debian GNU/Linux 5.0.7 (lenny) 
GNU bash 3.2.39

-----
 Data file data1:
1 2 3
4 5 6
7 8 9
3 4 5

-----
 Results with numsum:
15 19 23

Information about numsum ( package available in the Debian repositories ):
Code:
COPYRIGHT
       numsum is part of the num-utils package, which is copyrighted by Suso
       Banderas and released under the GPL license.  Please read the COPYING
       and LICENSE files that came with the num-utils package

         Developers can read the GOALS file and contact me about providing
       submitions or help for the project.

MORE INFO
       More info on numsum can be found at:

       http://suso.suso.org/programs/num-utils/

-- excerpt from man numsum

Best wishes ... cheers, drl
These 3 Users Gave Thanks to drl For This Post:
lovelinux shoaibjameel123 usha rao
 

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LEARN ABOUT DEBIAN

cfourcc

cfourcc(1)							   User Commands							cfourcc(1)

NAME

       cfourcc - tool for changing FourCC in Microsoft RIFF AVI files

SYNOPSIS

	 cfourcc [-i] <file.avi>
	 cfourcc -u <CODE> <file.avi>

OPTIONS

       -h  Show summary of options.

       -d CODE
	   Sets FOURCC codec decription string.

       -f  Force changing FOURCC on unsupported file

       -i  Display FOURCC information (default).

       -u CODE
	   Set FOURCC codec.

	   None.

DESCRIPTION

       Program identifies the codec used in AVI files (*.avi) and allows the user to change the FourCC description code (like fourcc-changer in
       Windows). Useful for people working with Microsoft AVI file. A Linux clone of AviC fourcc changer tool.

EXAMPLES

       Note that you only need to change the -u codec field most of the time and not touch the -d description:

	   cfourcc -u DIVX -d DIVX file.avi

ENVIRONMENT

       None.

FILES

       None.

SEE ALSO

       ffmpeg(1) mplayer(1)

AUTHORS

       cfourcc was written by Mohammad Hafiz bin Ismail aka "mypapit" <info@mypapit.net>.

       This manual page was written by Jarno Elonen <elonen@debian.org>, for the Debian project (but may be used by others). Updated by Jari Aalto
       <jari.aalto@cante.net>. Released under license GNU GPL v2 or (at your option) any later version. For more information about license, visit
       <http://www.gnu.org/copyleft/gpl.html>.

cfourcc 							    2012-04-02								cfourcc(1)
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