Unix下的find命令,{}和\;是什么?为了? [英] Unix find command, what are the {} and \; for?
问题描述
使用这组命令, {}
和 \;
字符是什么?
With this set of commands, what are the {}
and \;
characters for?
find . -name '*.clj' -exec grep -r resources {} \;
推荐答案
请参见 man找到.(特别是有关 -exec
的部分)
See man find. (particular the part about -exec
)
使用 -exec
在找到的每个文件上运行命令时, {}
替换为找到的每个文件的名称,并且该命令终止通过 \;
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(.
)下找到的所有与名称 *.clj
匹配的文件都将具有命令 grep -r resources
在它们上运行(如果每个文件中都存在字符串 resources
,则查找它们.)
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
已经在做的事情.
It's actually somewhat redundant, since -r
is for recursively searching subdirectories, and that's what find
is already doing.
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