Visit Our UNIX and Linux User Community

perl, put one array into many array when field is equal to sth

Thread Tools Search this Thread
Top Forums Shell Programming and Scripting perl, put one array into many array when field is equal to sth
# 1  
Old 06-06-2010
perl, put one array into many array when field is equal to sth

Hi Everyone,

use strict;
use warnings;

my @test=("a;b;qqq;c;d","a;b;ggg;c;d","a;b;qqq;c;d");

would like to split the @test array into two array:
@test1=(("a;b;qqq;c;d","a;b;qqq;c;d"); and @test2=("a;b;ggg;c;d");

means search for 3rd filed.


find the answer,
my @match = grep (/qqq/i, @test);

Last edited by jimmy_y; 06-06-2010 at 07:04 AM.. Reason: found the solution

Previous Thread | Next Thread
Test Your Knowledge in Computers #82
Difficulty: Easy
DOS was based on Unix.
True or False?

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Perl : Large amount of data put into an array

This basic code works. I have a very long list, almost 10000 lines that I am building into the array. Each line has either 2 or 3 fields as shown in the code snippit. The array elements are static (for a few reasons that out of scope of this question) the list has to be "built in". It... (5 Replies)
Discussion started by: sumguy
5 Replies

2. Shell Programming and Scripting

Perl - use search keywords from array and search a file and print 3rd field when matched

Hi , I have been trying to write a perl script to do this job. But i am not able to achieve the desired result. Below is my code. my $current_value=12345; my @users=("bob","ben","tom","harry"); open DBLIST,"<","/var/tmp/DBinfo"; my @input = <DBLIST>; foreach (@users) { my... (11 Replies)
Discussion started by: chidori
11 Replies

3. Shell Programming and Scripting

PERL : Read an array and write to another array with intial string pattern checks

I have an array and two variables as below, I need to check if $datevar is present in $filename. If so, i need to replace $filename with the values in the array. I need the output inside an ARRAY How can this be done. Any help will be appreciated. Thanks in advance. (2 Replies)
Discussion started by: irudayaraj
2 Replies

4. Shell Programming and Scripting

Array in Perl - Detect several file to be in one array

Hi everyone I have one question about using array in perl. let say I have several log file in one folder.. example test1.log test2.log test3.log and the list goes on.. how to make an array for this file? It suppose to detect log file in the current directory and all the log file will... (3 Replies)
Discussion started by: sayachop
3 Replies

5. Shell Programming and Scripting

perl sum 2nd field in an array

Hi Everyone, ($total+=$_) for @record; assume @record=(1,2,3), so the result is 6. if @record=("1 3","2 3","3 3"), would like to sum up the 2nd field of this array, the result is 9. i tried " ($total+=$) for @record ", cannot, please advice. Thanks ---------- Post updated at 03:45... (1 Reply)
Discussion started by: jimmy_y
1 Replies

6. Shell Programming and Scripting

perl sort array by field

Hi Everyone, Any simple code can simplify the code below, please advice. Thanks # cat #!/usr/bin/perl use warnings; use strict; my @aaaaa = <DATA>; my @uids; foreach (@aaaaa) { my @ccccc = split (",", $_); push @uids, $ccccc;... (3 Replies)
Discussion started by: jimmy_y
3 Replies

7. Shell Programming and Scripting

Put output into an array

I'm trying to take the output of an environment that has multiple strings ex. # echo $SSH_CLIENT 57039 22 I need that IP... so I can set it to another environment. Thank you (3 Replies)
Discussion started by: adelsin
3 Replies

8. Shell Programming and Scripting

Perl grep array against array

Hi, Is there any way I can grep an array against another array? Basically here's what I need to do. There will be an array containing some fixed texts and I have to check whether some files contain these lines. Reading the same files over and over again for each different pattern doesnt seem... (1 Reply)
Discussion started by: King Nothing
1 Replies

9. Shell Programming and Scripting

Perl - if conditions is meet, push the last field of $_ into an array

I am using a seed file shown below to separate cisco devices by ios/os type. I want to bunch all the devices based on ios/os version. Once I find a match, I only want to push the ip address into the appropriate array. Example of seedfile 8 host1 (C3500XL-C3H2S-M) 11.0(5)WC17 9... (1 Reply)
Discussion started by: popeye
1 Replies

10. Shell Programming and Scripting

Setting array equal to command response

normally when i type: condor_q | tail -1 command line returns: 0 jobs; 0 idle, 0 running, 0 held I want use the number in front of 'running' in a series of equality tests to submit more jobs when my queue gets low. Someone showed me how to do it a few days ago by setting an array equal to... (4 Replies)
Discussion started by: pattywac
4 Replies
Test::Class::Load(3pm)					User Contributed Perl Documentation				    Test::Class::Load(3pm)

Test::Class::Load - Load "Test::Class" classes automatically. VERSION
Version 0.02 SYNOPSIS
use Test::Class::Load qw(t/tests t/lib); Test::Class->runtests; EXPORT
"Test::Class" typically uses a helper script to load the test classes. It often looks something like this: #!/usr/bin/perl -T use strict; use warnings; use lib 't/tests'; use MyTest::Foo; use MyTest::Foo::Bar; use MyTest::Foo::Baz; Test::Class->runtests; This causes a problem, though. When you're writing a test class, it's easy to forget to add it to the helper script. Then you run your huge test suite and see that all tests pass, even though you don't notice that it didn't run your new test class. Or you delete a test class and you forget to remove it from the helper script. "Test::Class::Load" automatically finds and loads your test classes for you. There is no longer a need to list them individually. BASIC USAGE
Using "Test::Class::Load" is as simple as this: #!/usr/bin/perl -T use strict; use warnings; use Test::Class::Load 't/tests'; Test::Class->runtests; That will search through all files in the "t/tests" directory and automatically load anything which ends in ".pm". You should only put test classes in those directories. If you have test classes in more than one directory, that's OK. Just list all of them in the import list. use Test::Class::Load qw< t/customer t/order t/inventory >; Test::Class->runtests; ADVANCED USAGE
Here's some examples of advanced usage of "Test::Class::Load". FILTER LOADED CLASSES You can redefine the filtering criteria, that is, decide what classes are picked up and what others are not. You do this simply by subclassing "Test::Class::Load" overriding the "is_test_class()" method. You might want to do this to only load modules which inherit from "Test::Class", or anything else for that matter. is_test_class $is_test_class = $class->is_test_class( $file, $directory ) Returns true if $file in $directory should be considered a test class and be loaded by Test::Class::Load. The default filter simply returns true if $file ends with ".pm" For example: use strict; use warnings; package My::Loader; use base qw( Test::Class::Load ); # Overriding this selects what test classes # are considered by T::C::Load sub is_test_class { my ( $class, $file, $dir ) = @_; # return unless it's a .pm (the default) return unless $class->SUPER:is_test_class( $file, $dir ); # and only allow .pm files with "Good" in their filename return $file =~ m{Good}; } 1; CUSTOMIZING TEST RUNS One problem with this style of testing is that you run all of the tests every time you need to test something. If you want to run only one test class, it's problematic. The easy way to do this is to change your helper script by deleting the "runtests" call: #!/usr/bin/perl -T use strict; use warnings; use Test::Class::Load 't/tests'; Then, just make sure that all of your test classes inherit from your own base class which runs the tests for you. It might looks something like this: package My::Test::Class; use strict; use warnings; use base 'Test::Class'; INIT { Test::Class->runtests } # here's the magic! 1; Then you can run an individual test class by using the "prove" utility, tell it the directory of the test classes and the name of the test package you wish to run: prove -lv -It/tests Some::Test::Class You can even automate this by binding it to a key in "vim": noremap ,t :!prove -lv -It/tests %<CR> Then you can just type ",t" ('comma', 'tee') and it will run the tests for your test class or the tests for your test script (if you're using a traditional "Test::More" style script). Of course, you can still run your helper script with "prove", "make test" or "./Build test" to run all of your test classes. If you do that, you'll have to make sure that the "-I" switches point to your test class directories. SECURITY
"Test::Class::Load" is taint safe. Because we're reading the class names from the directory structure, they're marked as tainted when running under taint mode. We use the following ultra-paranoid bit of code to untaint them. Please file a bug report if this is too restrictive. my ($package) = $_package =~ /^([[:word:]]+(?:::[[:word:]]+)*)$/; AUTHOR
Curtis "Ovid" Poe, "<>" BUGS
Please report any bugs or feature requests to "", or through the web interface at <>. I will be notified, and then you'll automatically be notified of progress on your bug as I make changes. ACKNOWLEDGMENTS
Thanks to David Wheeler for the idea and Adrian Howard for "Test::Class". COPYRIGHT &; LICENSE Copyright 2006 Curtis "Ovid" Poe, all rights reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. perl v5.14.2 2012-06-27 Test::Class::Load(3pm)

Featured Tech Videos