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Top Forums Shell Programming and Scripting Changing the nth parameter in a file Post 302919242 by shamsfield on Monday 29th of September 2014 05:58:11 PM
Old 09-29-2014
Changing the nth parameter in a file

Hello,

I use a program using an input stream of parameters:
.
Code:
/my_prog.out <parameters.txt

The parameters.txt file has the following structure:

Code:
name
date
number1
number2
system

now imagine i would like to execute several times (>200) this program, but with different sets of number1 and number2. Is there a way to automatize this by making a shell to change these two very parameters into other numbers? I have no idea how to do that. Could anyone help? Smilie

for example it would be a script doing something like this:

Code:
for number1=1 to 100
for number 2 = 3 to 7
change myparameters.txt in these two specific field <- dunno how to do that
./my_prog.out <parameters.txt &

many thanks!

Moderator's Comments:
Mod Comment edit by bakunin: please use CODE-tags as required by the forum rules. Thank you.

Last edited by bakunin; 09-29-2014 at 07:04 PM..
 

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PAPS(1) 						      General Commands Manual							   PAPS(1)

NAME
paps - UTF-8 to PostScript converter using Pango SYNOPSIS
paps [options] files... DESCRIPTION
paps reads a UTF-8 encoded file and generates a PostScript language rendering of the file. The rendering is done by creating outline curves through the pango ft2 backend. OPTIONS
These programs follow the usual GNU command line syntax, with long options starting with two dashes (`-'). A summary of options is included below. --landscape Landscape output. Default is portrait. --columns=cl Number of columns output. Default is 1. --font=desc Set the font description. Default is Monospace 12. --rtl Do rtl layout. --paper ps Choose paper size. Known paper sizes are legal, letter, a4. Default is A4. --bottom-margin=bm Set bottom margin in postscript points (1/72 inch). Default is 36. --top-margin=tm Set top margin. Default is 36. --left-margin=lm Set left margin. Default is 36. --right-margin=rm Set right margin. Default is 36. --help Show summary of options. --header Draw page header for each page. --markup Interpret the text as pango markup. --encoding=ENCODING Assume the documentation encoding is ENCODING. --lpi Set the lines per inch. This determines the line spacing. --cpi Set the characters per inch. This is an alternative method of specifying the font size. --stretch-chars Indicates that characters should be stretched in the y-direction to fill up their vertical space. This is similar to the texttops behaviour. AUTHOR
paps was written by Dov Grobgeld <dov.grobgeld@gmail.com>. This manual page was written by Lior Kaplan <kaplan@debian.org>, for the Debian project (but may be used by others). April 17, 2006 PAPS(1)
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