diff --git a/sources/tech/Linux or UNIX grep Command Tutorial series/20151127 Linux or UNIX grep Command Tutorial series 4--Grep Count Lines If a String or Word Matches.md b/translated/tech/Linux or UNIX grep Command Tutorial series/20151127 Linux or UNIX grep Command Tutorial series 4--Grep Count Lines If a String or Word Matches.md
similarity index 55%
rename from sources/tech/Linux or UNIX grep Command Tutorial series/20151127 Linux or UNIX grep Command Tutorial series 4--Grep Count Lines If a String or Word Matches.md
rename to translated/tech/Linux or UNIX grep Command Tutorial series/20151127 Linux or UNIX grep Command Tutorial series 4--Grep Count Lines If a String or Word Matches.md
index c145320e5a..63cb1aa189 100644
--- a/sources/tech/Linux or UNIX grep Command Tutorial series/20151127 Linux or UNIX grep Command Tutorial series 4--Grep Count Lines If a String or Word Matches.md	
+++ b/translated/tech/Linux or UNIX grep Command Tutorial series/20151127 Linux or UNIX grep Command Tutorial series 4--Grep Count Lines If a String or Word Matches.md	
@@ -1,25 +1,24 @@
-(translating by runningwater)
-Grep Count Lines If a String / Word Matches
+Grep 命令统计匹配的字符串/单词行数
 ================================================================================
-How do I count lines if given word or string matches for each input file under Linux or UNIX operating systems?
+在 Linux 或 UNIX 操作系统下，对于给定的单词或字符串，我们应该怎么统计它们在每个输入文件中存在的行数呢？
 
-You need to pass the -c or --count option to suppress normal output. It will display a count of matching lines for each input file:
+您需要通过添加 -c 或者 --count 选项参数来抑制正常的输出。它将会显示对输入文件单词匹配的行数，如下示：
 
     $ grep -c vivek /etc/passwd
 
-OR
+或者
 
     $ grep -w -c vivek /etc/passwd
 
-Sample outputs:
+输出的示例:
 
     1
 
-However, with the -v or --invert-match option it will count non-matching lines, enter:
+相反的，使用 -v 或者 --invert 选项参数可以统计出不匹配的输入文件行数，键入：
 
     $ grep -c vivek /etc/passwd
 
-Sample outputs:
+输出的示例:
 
     45