An Opinionated Guide to xargs

Preliminaries What Is xargs? It's an adapter between text streams and argv arrays, two essential concepts in shell. You pass it flags that specify how to split stdin. Then it generates arguments and invokes processes. Example: $ echo 'alice bob' | xargs -n 1 -- echo hi hi alice hi bob What's happening here? xargs splits the input stream on whitespace, producing 2 arguments, alice and bob. We passe

[programmablekinoko]

シェルスクリプトの飛び道具の一つ

[yujiorama]

$0 Dispatch Pattern便利だな。xargsの引数渡し記号を使わずにshell functionにしたほうが見通しはよくなる