Unix find 命令，什么是{}和；为了? [英] Unix find command, what are the {} and ; for?

问题描述

有了这组命令，{} 和 ; 字符是干什么用的?

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

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

推荐答案

参见 man找到.(特别是关于-exec的部分)

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

当使用 -exec 对找到的每个文件运行命令时，{} 被替换为找到的每个文件的名称，并终止命令by ;

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，匹配名称 *.clj 将具有命令 grep -r resources 对它们运行(查找字符串 resources 如果它存在于每个文件中).

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).

它实际上有点多余，因为 -r 用于递归搜索子目录，而这正是 find 已经在做的.

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

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