string 如何在子目录中的所有java文件中grep一个字符串？
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How to grep a String in all the java files in subdirectories?
提问by Freewind
I want to use grepto find the lines contain Stringin all java files under current directory.
我想用来grep查找String当前目录下所有java文件中包含的行。
I tried:
我试过：
grep -r "String" **/*.java
But it doesn't work:
但它不起作用：
grep : **/*.java: no such file or directory
How to write it?
怎么写？
UPDATE
更新
I'm on windows, using the grepprovided by unxUtils, which doesn't support --includeparameter. Is there any other way?
我在 Windows 上，使用grep提供的unxUtils，它不支持--include参数。有没有其他办法？
回答by anubhava
Use recursive grep:
使用递归 grep：
grep -r "String" --include=*.java .
回答by bmk
I guess the unxUtilsprovide the findutility. So you could try to do:
我猜unxUtils提供了find实用程序。所以你可以尝试这样做：
find . -name "*.java" -exec grep "String" {} \;
or
或者
find . -name "*.java" -exec grep "String" {} \+
The first version will execute one grepcommand for each file found. The latter version will only execute as many grepcommands as necessary but not every findversion supports the +argument.
第一个版本将为grep找到的每个文件执行一个命令。后一个版本只会grep根据需要执行尽可能多的命令，但并非每个find版本都支持该+参数。
