Linux grep，但只有某些文件扩展名
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grep, but only certain file extensions
提问by Jason
I am working on writing some scripts to grepcertain directories, but these directories contain all sorts of file types.
我正在将一些脚本写入grep某些目录，但这些目录包含各种文件类型。
I want to grepjust .hand .cppfor now, but maybe a few others in the future.
我想grep只是.h和.cpp现在，但也许其他几个人的未来。
So far I have:
到目前为止，我有：
{ grep -r -i CP_Image ~/path1/;
grep -r -i CP_Image ~/path2/;
grep -r -i CP_Image ~/path3/;
grep -r -i CP_Image ~/path4/;
grep -r -i CP_Image ~/path5/;}
| mailx -s GREP [email protected]
Can anyone show me how I would now add just the specific file extensions?
谁能告诉我我现在如何只添加特定的文件扩展名？
采纳答案by Nelson
Just use the --includeparameter, like this:
只需使用--include参数，如下所示：
grep -r -i --include \*.h --include \*.cpp CP_Image ~/path[12345] | mailx -s GREP [email protected]
that should do what you want.
那应该做你想做的。
To take the explanation from HoldOffHunger's answerbelow:
从以下HoldOffHunger 的回答中获取解释：
grep: command-r: recursively-i: ignore-case--include \*.cpp: all *.cpp: C++ files (escape with \ just in case you have a directory with asterisks in the filenames)./: Start at current directory.
grep： 命令-r: 递归-i: 忽略大小写--include \*.cpp: 所有 *.cpp: C++ 文件（用 \ 转义，以防您的目录中文件名带有星号）./: 从当前目录开始。
回答by Amir Afghani
How about:
怎么样：
find . -name '*.h' -o -name '*.cpp' -exec grep "CP_Image" {} \; -print
回答by where23
Should write "-exec grep " for each "-o -name "
应该为每个“-o -name”写“-exec grep”
find . -name '*.h' -exec grep -Hn "CP_Image" {} \; -o -name '*.cpp' -exec grep -Hn "CP_Image" {} \;
Or group them by ( )
或按 ( )
find . \( -name '*.h' -o -name '*.cpp' \) -exec grep -Hn "CP_Image" {} \;
option '-Hn' show the file name and line.
选项“-Hn”显示文件名和行。
回答by Tom
I am aware this question is a bit dated, but I would like to share the method I normally use to find .cand .hfiles:
我知道这个问题有点过时了，但我想分享我通常用来查找.c和.h文件的方法：
tree -if | grep \.[ch]\b | xargs -n 1 grep -H "#include"
or if you need the line number as well:
或者如果您还需要行号：
tree -if | grep \.[ch]\b | xargs -n 1 grep -nH "#include"
回答by Yuri Malov
grep -rnw "some thing to grep" --include=*.{module,inc,php,js,css,html,htm} ./
回答by Sam B
There is no -r option on HP and Sun servers, this way worked for me on my HP server
HP 和 Sun 服务器上没有 -r 选项，这种方式在我的 HP 服务器上对我有用
find . -name "*.c" | xargs grep -i "my great text"
-i is for case insensitive search of string
-i 用于不区分大小写的字符串搜索
回答by HoldOffHunger
Some of these answers seemed too syntax-heavy, or they produced issues on my Debian Server. This worked perfectly for me:
其中一些答案似乎语法过于繁重，或者它们在我的 Debian 服务器上产生了问题。这对我来说非常有效：
PHP Revolution: How to Grep files in Linux, but only certain file extensions?
PHP 革命：如何在 Linux 中 Grep 文件，但只有某些文件扩展名？
Namely:
即：
grep -r --include=\*.txt 'searchterm' ./
...or case-insensitive version...
...或不区分大小写的版本...
grep -r -i --include=\*.txt 'searchterm' ./
grep: command-r: recursively-i: ignore-case--include: all *.txt: text files (escape with \ just in case you have a directory with asterisks in the filenames)'searchterm': What to search./: Start at current directory.
grep： 命令-r: 递归-i: 忽略大小写--include: 所有 *.txt: 文本文件（用 \ 转义以防万一您的目录中文件名带有星号）'searchterm': 搜索什么./: 从当前目录开始。
回答by fedorqui 'SO stop harming'
Since this is a matter of findingfiles, let's use find!
由于这是查找文件的问题，让我们使用find!
Using GNU find you can use the -regexoption to find those files in the tree of directories whose extension is either .hor .cpp:
使用 GNU find 您可以使用该-regex选项在目录树中查找扩展名为.h或 的文件.cpp：
find -type f -regex ".*\.\(h\|cpp\)"
# ^^^^^^^^^^^^^^^^^^^^^^^
Then, it is just a matter of executing grepon each of its results:
然后，只需执行grep其每个结果：
find -type f -regex ".*\.\(h\|cpp\)" -exec grep "your pattern" {} +
If you don't have this distribution of find you have to use an approach like Amir Afghani's, using -oto concatenate options (the name is either ending with .hor with .cpp):
如果您没有 find 的这种分布，则必须使用类似Amir Afghani 的方法，-o用于连接选项（名称以.h或结尾.cpp）：
find -type f \( -name '*.h' -o -name '*.cpp' \) -exec grep "your pattern" {} +
# ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
And if you really want to use grep, follow the syntax indicated to --include:
如果您真的想使用grep，请遵循指示的语法--include：
grep "your pattern" -r --include=*.{cpp,h}
# ^^^^^^^^^^^^^^^^^^^
回答by user3640130
The easiest way is
最简单的方法是
find . -type f -name '*.extension' | xargs grep -i string
回答by Eldamir
ag(the silver searcher) has pretty simple syntax for this
ag（银搜索器）对此有非常简单的语法
-G --file-search-regex PATTERN
Only search files whose names match PATTERN.
so
所以
ag -G *.h -G *.cpp CP_Image <path>
