Bash:如何将一个命令的每个结果传递给另一个命令 [英] Bash: how to pipe each result of one command to another

问题描述

我想从以下命令返回的所有文件中获得总计行数:

I want to get the total count of the number of lines from all the files returned by the following command:

shell> find . -name *.info

所有.info文件都嵌套在子目录中，所以我不能简单地这样做:

All the .info files are nested in sub-directories so I can't simply do:

shell> wc -l *.info

确定这应该在所有bash用户的曲目中，但会卡住！

Am sure this should be in any bash users repertoire, but am stuck!

谢谢

推荐答案

wc -l `find . -name *.info`

如果只需要总数，请使用

If you just want the total, use

wc -l `find . -name *.info` | tail -1

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也可以使用xargs管道，并且希望可以避免命令行太长".

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Piping to xargs also works, and hopefully can avoid the 'command line too long'.

find . -name *.info | xargs wc -l

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