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Full Discussion: awk - function to return permutations of n items out of m
Top Forums Shell Programming and Scripting awk - function to return permutations of n items out of m Post 303028502 by wisecracker on Wednesday 9th of January 2019 03:07:48 PM
Old 01-09-2019
Quote:
Originally Posted by nezabudka
Thank you all for an evaluation
Probably there should replace the heavyweight utility "xargs" and wrap everything in a function
like so
Code:
#!/bin/bash
prt() {
        str=$(seq -s"{$1..$2}" $3)
        eval echo ${str//[0-9]}
}
prt a e $((3+1)) | fmt -1 | sed 's/./& /g'

Or insert a loop "for in" as suggested above.
In ksh93 works too
Too many pipes and transient commands, (utilities)...
However $((3+1)) should be $((2+1)) or $((3)) on OSX 10.14.1, default bash terminal...
Code:
Last login: Wed Jan  9 19:58:11 on ttys000
AMIGA:amiga~> cd Desktop/Code/Shell
AMIGA:amiga~/Desktop/Code/Shell> bash --version
GNU bash, version 3.2.57(1)-release (x86_64-apple-darwin18)
Copyright (C) 2007 Free Software Foundation, Inc.
AMIGA:amiga~/Desktop/Code/Shell> ./abcde.sh
a a a 
a a b 
a a c 
a a d 
a a e 
a b a 
a b b 
a b c 
. . .
e d d 
e d e 
e e a 
e e b 
e e c 
e e d 
e e e 
AMIGA:amiga~/Desktop/Code/Shell> _

This User Gave Thanks to wisecracker For This Post:
nezabudka
 

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LEARN ABOUT DEBIAN

xsil2graphics

XSIL2GRAPHICS(1)					User Contributed Perl Documentation					  XSIL2GRAPHICS(1)

NAME

       xsil2graphics - generate scripts to load xsil output data files

SYNOPSIS

       xsil2graphics [options] <xsil_file>

DESCRIPTION

       Utility program bundled with xmds, used to generate scripts that load simulation output data into either matlab (http://www.mathworks.com)
       or scilab (http://www.scilab.org), which are then used to manipulate the results further if necessary and then to present the results
       graphically.

       Matlab

       To generate a matlab m-file, from the xsil file data_file.xsil use the command:

       bash$ xsil2graphics data_file.xsil

       or

       bash$ xsil2graphics --matlab data_file.xsil

       Then at the matlab command prompt:

       >> data_file

       Scilab

       To generate a scilab script file, from the xsil file data_file.xsil use the command:

       bash$ xsil2graphics --scilab data_file.xsil

       Then at the scilab command prompt:

       --> exec('data_file.sci')

OPTIONS

       -m, --matlab generate matlab m-file script to load data from the xsil data file (the default option)

       -s, -scilab generate scilab script file to load data from the xsil data file

       -o, --outfile <out_file> specify an alternative output script filename to the default which is the input xsil filename with the .xsil
       extension changed to either .m for the matlab m-file or .sci for the scilab script file

EXAMPLES

       bash$ xsil2graphics nlse.xsil

       Generates the output nlse.m to load the data into matlab

       bash$ xsil2graphics -m nlse.xsil

       Also generates the output nlse.m but explicitly sets matlab to be the output format

       bash$ xsil2graphics --scilab nlse.xsil

       Generates the output nlse.sci to load the data into scilab

       bash$ xsil2graphics --outfile nlse_new.m nlse.xsil

       Generates the output nlse_new.m to load the data into matlab

AUTHORS

       Originally written by Greg Collecutt

       Maintained by Paul Cochrane with code contributed by Joe Hope

BUGS

       No known bugs.

SEE ALSO

       xmds(1), loadxsil(1)

       http://www.xmds.org

COPYRIGHT

       Copyright (C) 2000-2004

       Code contributed by Greg Collecutt, Joseph Hope and Paul Cochrane

       This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by
       the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

       This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MER-
       CHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.

       You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation,
       Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

perl v5.8.2							    2004-06-21							  XSIL2GRAPHICS(1)
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