Parallel shells with xargs: Utilize all your cpu cores on UNIX and Windows
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One particular frustration with the UNIX shell is the inability to easily schedule multiple, concurrent tasks that fully utilize CPU cores presented on modern systems. The example of focus in this article is file compression, but the problem rises with many computationally intensive tasks, such as image/audio/media processing, password cracking and hash analysis, database Extract, Transform, and Load, and backup activities. It is understandably frustrating to wait for gzip * running on a single CPU core, while most of a machine's processing power lies idle.
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