How do I check if the argument passed to a script is an integer?
I am writting a script that will take to integers and want to be able to check before I go on.
I am using bourne shell.
Thanks in advance (13 Replies)
hi, im trying to compare two variables in csh to put in an if statement, eg:
set a = $firstnum
set b = $secondnum
if ($a -ge $b) echo $a
But I get an error ("if: Expression syntax"). How can I make csh see my variables as integers?
thanks in advance! (5 Replies)
I'm trying to write an integer to a file using the write() function, but write() requires the parameter to be written to be a const void*.
How would I go about doing this?
also: using itoa() produces a " warning: implicit declaration of function 'itoa' " even though i have #included stdlib.h (2 Replies)
I have a file with the following:
87565
82155
102656
151
162
I want to write korn shell script that will read each line in a loop and remove any number that has less than 5 digits, e.g., 151 and 152.
thank you,
Keoki:confused: (4 Replies)
I would like to add 4.7 and 1.2. However I am unable to do this with expr.
Any simple ideas (even using something other than expr)?
Example:
me> expr 4 + 1
5
me> expr 4.7 + 1.2
expr: 0402-046 A specified operator requires numeric parameters. (18 Replies)
I am using gawk in a dos shell in windows xp and want to read a datafile and reformat it.
The datafile consists of columns of integers, floating point numbers and text strings. Each column is a fixed width and each column contains the same data type, eg all integers, all text.
I am looking for a... (0 Replies)
Wonderful evening to all of you!
My problem has to possible starting points.
Well, not really, but getting to either one is no problem at all.
So i got either a string in the format of "1920x1080" or simply the integers X = 1920 and Y = 1080.
When I am done, I would like to have an output... (5 Replies)
Hy friends, I am newbie to bash scripting, can anyone explain how b=${a/23/BB} # Substitute "BB" for "23". this line converts "b" into string and and "d" into Integer. Thanks in advance (4 Replies)
Hi,
I'm totally new at this, so help will be appreciated.
I have a directory with a bunch of files in it. The files are named xinteger_yinteger_zinteger.vtk (eg, x3_y0_z-1.vtk). I want to read the filenames and then assign the integers to variables that I then can use in expressions. So, for... (6 Replies)
Hi,
I can't figure out what I'm missing. I'm running a query to see if there are any streams recording on my DVR before starting a scripted update. I'm guessing that it is viewing $VIDEO as a string instead of an int. I've tried everything I saw on google but it still comes back as $VIDEO is... (8 Replies)
Discussion started by: Rhysers
8 Replies
LEARN ABOUT DEBIAN
test::regression
Test::Regression(3pm) User Contributed Perl Documentation Test::Regression(3pm)NAME
Test::Regression - Test library that can be run in two modes; one to generate outputs and a second to compare against them
VERSION
Version 0.05
SYNOPSIS
use Test::Regression;
ok_regression(sub {return "hello world"}, "t/out/hello_world.txt");
DESCRIPTION
Using the various Test:: modules you can compare the output of a function against what you expect. However if the output is complex and
changes from version to version, maintenance of the expected output could be costly. This module allows one to use the test code to
generate the expected output, so that if the differences with model output are expected, one can easily refresh the model output.
EXPORT
ok_regression
FUNCTIONS
ok_regression
This function requires two arguments: a CODE ref and a file path. The CODE ref is expected to return a SCALAR string which can be compared
against previous runs. If the TEST_REGRESSION_GEN is set to a true value, then the CODE ref is run and the output written to the file.
Otherwise the output of the file is compared against the contents of the file. There is a third optional argument which is the test name.
ENVIRONMENT VARIABLES
TEST_REGRESSION_GEN
If the TEST_REGRESSION_GEN environment file is unset or false in a perl sense, then the named output files must exist and be readable and
the test will run normally comparing the outputs of the CODE refs against the contents of those files. If the environment variable is true
in a perl sense, then model output files will be overwritten with the output of the CODE ref.
AUTHOR
Nicholas Bamber, "<nicholas at periapt.co.uk>"
BUGS
Please report any bugs or feature requests to "bug-test-regression at rt.cpan.org", or through the web interface at
<http://rt.cpan.org/NoAuth/ReportBug.html?Queue=Test-Regression>. I will be notified, and then you'll automatically be notified of
progress on your bug as I make changes.
testing of STDERR
The testing of stderr from this module is not as thorough as I would like. Test::Builder::Tester allows turning off of stderr checking but
not matching by regular expression. Handcrafted efforts currently fall foul of Test::Harness. Still it is I believe adequately tested in
terms of coverage.
SUPPORT
You can find documentation for this module with the perldoc command.
perldoc Test::Regression
You can also look for information at:
o RT: CPAN's request tracker
<http://rt.cpan.org/NoAuth/Bugs.html?Dist=Test-Regression>
o AnnoCPAN: Annotated CPAN documentation
<http://annocpan.org/dist/Test-Regression>
o CPAN Ratings
<http://cpanratings.perl.org/d/Test-Regression>
o Search CPAN
<http://search.cpan.org/dist/Test-Regression/>
ACKNOWLEDGEMENTS
Some documentation improvements have been suggested by toolic (http://perlmonks.org/?node_id=622051).
Thanks to Filip GraliXski for pointing out I need to test against output of zero length and providing a patch.
COPYRIGHT & LICENSE
Copyright 2009-10 Nicholas Bamber.
This program is free software; you can redistribute it and/or modify it under the terms of either: the GNU General Public License as
published by the Free Software Foundation; or the Artistic License.
See http://dev.perl.org/licenses/ for more information.
perl v5.10.1 2010-08-29 Test::Regression(3pm)