程序"yes"是否有重要意义? [英] Is the program `yes` used for anything significant?

问题描述

当我第一次在* nix中遇到 yes 程序时，我想不出它的重要用途.

When I first came across the yes program in *nix I couldn't think of a significant use for it.

该程序如何使用?

推荐答案

是旨在自动执行需要确认的交互式程序，然后再采取行动.

yes is meant to automate interactive programs that want confirmation before taking action.

yes | rm -ri foo

大致相当于

rm -rf foo

区别在于 -f 也会在失败的情况下继续执行.

The difference is that -f will also proceed in case of failure.

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