parallel – shell tool for executing jobs in parallel

parallel is a shell tool for executing jobs in parallel using one or more computers.

A job can be a single command or a small script that has to be run for each of the lines in the input. The typical input is a list of files, a list of hosts, a list of users, a list of URLs, or a list of tables. A job can also be a command that reads from a pipe. GNU parallel can then split the input and pipe it into commands in parallel.

parallel is written to have the same options as xargs. If you write loops in shell, you will find GNU parallel may be able to replace most of the loops and make them run faster by running several jobs in parallel.

This is free and open source software.

Website: www.gnu.org/software/parallel
Support:
Developer: GNU Project
License: GNU General Public License v3.0

parallel is written in Perl. Learn Perl with our recommended free books and free tutorials.

Alternatives to xargs

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