简单unix命令，什么是{}和\;对于 [英] Simple unix command, what is the {} and \; for

问题描述

使用这组命令，什么是{}和\; ？

With this set of commands, what are the {} and \; characters for?

find . -name '*.clj' -exec grep -r resources {} \;

推荐答案

请参阅 man find 。 （特别是 -exec 部分）

See man find. (particular the part about -exec)

使用 -exec 为每个找到的文件运行命令， {} 被替换为找到的每个文件的名称，命令终止 \;

When using -exec to run a command on each of the files found, the {} is replaced with the name of each file found, and the command is terminated by \;

在您的示例中，在当前目录下找到的所有文件（。），匹配 *。clj 将有命令 grep -r resources

In your example, all files found under the current directory (.), matching the name *.clj will have the command grep -r resources run on them (to find the string resources if it exists in each of those files).

实际上有些多余，因为 c $ c> -r 用于递归搜索子目录，这是找到已经在做。

It's actually somewhat redundant, since -r is for recursively searching subdirectories, and that's what find is already doing.

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