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GNU parallel is a command-line driven utility for GNU/Linux or other Unix-like operating systems which allows the user to execute shell scripts in parallel. GNU parallel is free software, written by Ole Tange in Perl. It is available under the terms of GPLv3.〔(【引用サイトリンク】work=GNU.org )〕 == Usage == The most common usage is to replace the shell loop, for example for x in `cat list` ; do do_something "$x" done | process_output to the form of cat list | parallel do_something | process_output where the file list contains arguments for do_something and where process_output may be empty. Scripts using parallel are often easier to read than scripts using pexec. The program parallel features also * grouping of standard output and standard error so the output of the parallel running jobs do not run together; * retaining the order of output to remain the same order as input; * dealing nicely with filenames containing special characters such as space, single quote, double quote, ampersand, and UTF-8 encoded characters; By default, parallel runs as many jobs in parallel as there are CPU cores. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「GNU parallel」の詳細全文を読む スポンサード リンク
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