Can I use xargs to send a list of commands to a process, to be acted upon individually? Here's what I have: a file that contains numbers, one per line. The desired outcome it to send each number to a DB2 query. I thought xargs would work, but it doesn't. I tried it like this:
cat file | xargs |... (4 Replies)
I discovered that GNU's xargs has a -P option to allow its processes to run in parallel. Great! Is this a GNU thing, or is it supported by other platforms as well? (4 Replies)
Hi,
I have a requirement to RCP the files from remote server to local server.
Also the RCP has to run in parallel. However using 'xargs' retrives 2 file names during each loop. How do we restrict to only one file name using xargs and loop till remaining files.
I use the below code for... (2 Replies)
Hello there,
Let me show you a simple example of what I am trying to achieve:
1) I have an input text file with some lines:
1 a
2 b
3 c
2) And I want to run a command with these lines as arguments (+ arbitrary extra arguments). For example:
$ command "1 a" "2 b" "3 c" "bye"
I... (7 Replies)
hi
Could any one please tell me the option using which we can run multiple commands using xargs
I have list of files, I want to run dos2unix and chmod at one shot on them
I tried google n searched man pages but couldnt really find the solution , please help
right now im doing this
ls... (4 Replies)
Hi,
I want to find some files and then search for some lines in it with a particular pattern and then write those lines into a file. To do this I am using something like this from command prompt directly.
cd /mdat/BVG
find -name "stmt.*cl" -newer temp.txt | xargs -i awk '/BVG-/{print}' {} >... (7 Replies)
Hi,
can anyone tell me in detail ?
what the following do in detail ?
I am trying to get a largest number in a list
Thanks
Tao
LARGEST=$(echo $* | xargs -n1 | sort -nr | tail -1) (3 Replies)
Hi I have multiple files for which I want to use awk for the following:
Read each line in each file- if any of the columns match "PVALUE=" followed by the number, then print the line in case the number following "PVALUE=" is greater than 0.05.
I did the following:
ls *.txt | xargs -I @ -P15... (14 Replies)
Discussion started by: ts89490
14 Replies
LEARN ABOUT REDHAT
parent
parent(3pm) Perl Programmers Reference Guide parent(3pm)NAME
parent - Establish an ISA relationship with base classes at compile time
SYNOPSIS
package Baz;
use parent qw(Foo Bar);
DESCRIPTION
Allows you to both load one or more modules, while setting up inheritance from those modules at the same time. Mostly similar in effect to
package Baz;
BEGIN {
require Foo;
require Bar;
push @ISA, qw(Foo Bar);
}
By default, every base class needs to live in a file of its own. If you want to have a subclass and its parent class in the same file, you
can tell "parent" not to load any modules by using the "-norequire" switch:
package Foo;
sub exclaim { "I CAN HAS PERL" }
package DoesNotLoadFooBar;
use parent -norequire, 'Foo', 'Bar';
# will not go looking for Foo.pm or Bar.pm
This is equivalent to the following code:
package Foo;
sub exclaim { "I CAN HAS PERL" }
package DoesNotLoadFooBar;
push @DoesNotLoadFooBar::ISA, 'Foo', 'Bar';
This is also helpful for the case where a package lives within a differently named file:
package MyHash;
use Tie::Hash;
use parent -norequire, 'Tie::StdHash';
This is equivalent to the following code:
package MyHash;
require Tie::Hash;
push @ISA, 'Tie::StdHash';
If you want to load a subclass from a file that "require" would not consider an eligible filename (that is, it does not end in either ".pm"
or ".pmc"), use the following code:
package MySecondPlugin;
require './plugins/custom.plugin'; # contains Plugin::Custom
use parent -norequire, 'Plugin::Custom';
DIAGNOSTICS
Class 'Foo' tried to inherit from itself
Attempting to inherit from yourself generates a warning.
use Foo;
use parent 'Foo';
HISTORY
This module was forked from base to remove the cruft that had accumulated in it.
CAVEATS SEE ALSO
base
AUTHORS AND CONTRIBUTORS
Rafaeel Garcia-Suarez, Bart Lateur, Max Maischein, Anno Siegel, Michael Schwern
MAINTAINER
Max Maischein " corion@cpan.org "
Copyright (c) 2007 Max Maischein "<corion@cpan.org>" Based on the idea of "base.pm", which was introduced with Perl 5.004_04.
LICENSE
This module is released under the same terms as Perl itself.
perl v5.12.1 2010-04-26 parent(3pm)