Hi Friends,
Can any of you explain me about the below line of code?
mn_code=`env|grep "..mn"|awk -F"=" '{print $2}'`
Im not able to understand, what exactly it is doing :confused:
Any help would be useful for me.
Lokesha (4 Replies)
Hi,
Can someone please clarify how we are able to use both IO and GLOB symbols of a package variable interchangeably?
Please consider the following code:
open(FH,"myfile") || die "Unable to open file myfile:$@";
my $glob_var = *main::FH{GLOB};
my $io_var = *main::FH{IO};
print $glob_var... (0 Replies)
I have an executable that processes under the basic premise of:
program file_in file_out "parameters a b c"
However, we often create statements like the following:
program file1 + file2 + file3 file_out "parameters a b"
or even:
program file1 + file2 + file3 file_out "parameters a b"... (7 Replies)
Let's say I want to write a program that run these 4 UNIX commands and redirect output to a file.
#!/usr/local/bin/perl
use strict;
`cd \$HOME > output.txt`;
`cut -f1 inputfile.txt >> output.txt`;
`hostname >> output.txt`;
`ifconfig >> output.txt`;
I want to print a "carriage return"... (5 Replies)
Hi all,
First off, sorry for a long post but I think I have no other option if I need to explain properly what I need help for.
I need some advise on how best to check for "faulty" or "stalled/jammed' print queues. At the moment, I have three (3) application servers which also acts as print... (0 Replies)
What exactly is this code returning:
perl -MConfig -e 'print "$Config{byteorder}\n";'
I am executing this command in two platforms.
In AIX i am getting : 4321
In Linux i am getting: 12345678
Does it mean that a byte size in aix is of 4 bits(is it possible)?
Also, will there be... (2 Replies)
Hi, I can't print array variable in the sentense.
print "$category.dat or something\n";
Some perl version can use, some can't.
How to solve it.
Thanks for advance. (4 Replies)
Look at the following data file(cou.data) which has four fields separated by tab.
Four fields are country name, land area, population, continent where it belongs.
As for country name or continent name which has two words, two words are separated by space.
(Data are not accurately... (1 Reply)
Hello.
System : opensuse leap 42.3
I have a bash script that build a text file.
I would like the last command doing :
print_cmd -o page-left=43 -o page-right=22 -o page-top=28 -o page-bottom=43 -o font=LatinModernMono12:regular:9 some_file.txt
where :
print_cmd ::= some printing... (1 Reply)
Discussion started by: jcdole
1 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)