[Translated] tech/Linux or UNIX grep Command Tutorial series/20151127 Linux or UNIX grep Command Tutorial series 6--How To Find Files by Content Under UNIX.md

translated/tech/Linux or UNIX grep Command Tutorial series/20151127 Linux or UNIX grep Command Tutorial series 6--How To Find Files by Content Under UNIX.md

@@ -1,15 +1,20 @@
+如何在 UNIX 中根据文件内容查找文件
 How To Find Files by Content Under UNIX
 ================================================================================
+为了完成课程作业，我写了很多 C 语言代码并把它们保存为 /home/user/c/*.c and *.h。那么在 UNIX shell 窗口中我如何能通过字符串或者单词（例如函数名 main()）文件内容来查找文件呢？
 I had written lots of code in C for my school work and saved it as source code under /home/user/c/*.c and *.h. How do I find files by content such as string or words (function name such as main() under UNIX shell prompt?
 
+你需要用到以下工具：
 You need to use the following tools:
 
-[a] **grep command** : print lines matching a pattern.
+[a] **grep 命令** ： 输出匹配模式的行。
 
-[b] **find command**: search for files in a directory hierarchy.
+[b] **find 命令**： 在目录层次中查找文件。
 
+### [使用 grep 命令根据内容查找文件][1]
 ### [grep Command To Find Files By][1] Content ###
 
+输入以下命令：
 Type the command as follows:
 
     grep 'string' *.txt
@@ -19,36 +24,48 @@ Type the command as follows:
     grep -i 'ultra' *.conf
     grep -iR 'ultra' *.conf
 
+其中
 Where
 
+- **-i** ： 忽视模式（匹配字符串 valid、 VALID、 ValID ）和输入文件（匹配 file.c FILE.c FILE.C）的大小写。
+- **-R** ： 递归读取每个目录下的所有文件。
 - **-i** : Ignore case distinctions in both the PATTERN (match valid, VALID, ValID string) and the input files (math file.c FILE.c FILE.C filename).
 - **-R** : Read all files under each directory, recursively
 
+### 高亮匹配到的模式 ###
 ### Highlighting searched patterns ###
 
+在搜索大量文件的时候你可以轻松地高亮模式：
 You can highlight patterns easily while searching large number of files:
 
     $ grep --color=auto -iR 'getChar();' *.c
 
+### 为查找到的模式显示文件名和行号 ###
 ### Displaying file names and line number for searched patterns ###
 
+你也许需要显示文件名和行号：
 You may also need to display filenames and numbers:
 
     $ grep --color=auto -iRnH 'getChar();' *.c
 
+其中，
 Where,
 
+- **-n** ： 在输出的每行前面添加文件中以 1 开始的行号。
+- **-H** ： 为每个匹配打印文件名。要搜索多个文件时这是默认选项。
 - **-n** : Prefix each line of output with the 1-based line number within its input file.
 - **-H** Print the file name for each match. This is the default when there is more than one file to search.
 
     $grep --color=auto -nH 'DIR' *
 
+输出样例：
 Sample output:
 
-![Fig.01: grep command displaying searched pattern](http://www.cyberciti.biz/faq/wp-content/uploads/2008/09/grep-command.png)
+![Fig.01: grep 命令显示搜索到的模式](http://www.cyberciti.biz/faq/wp-content/uploads/2008/09/grep-command.png)
 
-Fig.01: grep command displaying searched pattern
+Fig.01: grep 命令显示搜索到的模式
 
+你也可以使用 find 命令：
 You can also use find command:
 
     $ find . -name "*.c" -print | xargs grep "main("
@@ -58,7 +75,7 @@ You can also use find command:
 via: http://www.cyberciti.biz/faq/unix-linux-finding-files-by-content/
 
 作者：Vivek Gite
-译者：[译者ID](https://github.com/译者ID)
+译者：[ictlyh](http://mutouxiaogui.cn/blog/)
 校对：[校对者ID](https://github.com/校对者ID)
 
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