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Top Forums Shell Programming and Scripting Reading in two lines at once from a text file Post 302793775 by tastybrownies on Saturday 13th of April 2013 04:14:49 PM
Old 04-13-2013
Reading in two lines at once from a text file

Hello everyone,

I have thought about this for quite some time and know what I want to do but am having some trouble at it. I have a text file filled with numbers like this, there are more in the file obviously. Each number is separated by a space.

Code:
1  3  2  4   5
1 -1  1 0  -1 5

The idea is to use these numbers to calculate some kind of a profit. The first line is price per item and the second line indicates an action. 1 means you bought it, -1 means you sold it, 0 means no action. So, to demonstrate things, you buy an item at $1, the running total is -1, you sell (add 3), subtract 2, ignore the no transaction, then add 5, leaving you with 5. Anyway, I have a script called test and if you run it, it allows you to enter a line of numbers separate by spaces, when you hit enter it displays the second line results. I think the idea is to feed lines in from testcase.txt to the check.sh file (the one I'm scripting now) and compare the program output with the expected output in testcase.txt. So, if I can get every odd line from testcase and feed it in, read the result output, then I can compare it. Is there a good way to do this? To call a .sh file within a .sh file?

Code:
set lines=`cat $PWD/testcase.txt`
set i=1

while ($i <= $#lines)
    echo $lines[$i]
    @ i = $i + 1
end

Oh yeah, if I can somehow feed a line from testcase to test.sh and store its result in a variable (ala the second line), then there might be a way to get it done.

Last edited by tastybrownies; 04-13-2013 at 05:48 PM.. Reason: Clarification
 

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VIEWPERL(1)							   User Commands						       VIEWPERL(1)

NAME
viewperl - quickly view syntax highlighted Perl code SYNOPSIS
viewperl [OPTION]... FILE... DESCRIPTION
View a Perl source code file, syntax highlighted. -c, --code=CODE view CODE, syntax highlighted -l, --lines display line numbers -L, --no-lines supress display of line numbers (default) -m, --module=FILE consider FILE the name of a module, not a file name -n, --name display the name of each file (default) -N, --no-name supress display of file names (implied by --no-reset) -p, --pod display inline POD documentation (default) -P, --no-pod hide POD documentation (line numbers still increment) -r, --reset reset formatting and line numbers each file (default) -R, --no-reset supress resetting of formatting and line numbers -s, --shift=WIDTH set tab width (default is 4) -t, --tabs translate tabs into spaces (default) -T, --no-tabs supress translating of tabs into spaces --help display this help and exit Note that module names should be given as they would appear after a Perl `use' or `require' statement. `Getopt::Long', for example. Each string given using -c is considered a different file, so line number and formatting resets will apply. View a Perl source code file, syntax highlighted. -c, --code=CODE view CODE, syntax highlighted -l, --lines display line numbers -L, --no-lines supress display of line numbers (default) -m, --module=FILE consider FILE the name of a module, not a file name -n, --name display the name of each file (default) -N, --no-name supress display of file names (implied by --no-reset) -p, --pod display inline POD documentation (default) -P, --no-pod hide POD documentation (line numbers still increment) -r, --reset reset formatting and line numbers each file (default) -R, --no-reset supress resetting of formatting and line numbers -s, --shift=WIDTH set tab width (default is 4) -t, --tabs translate tabs into spaces (default) -T, --no-tabs supress translating of tabs into spaces --help display this help and exit Note that module names should be given as they would appear after a Perl `use' or `require' statement. `Getopt::Long', for example. Each string given using -c is considered a different file, so line number and formatting resets will apply. viewperl August 2007 VIEWPERL(1)
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