在多个文件中grep，如何不显示文件名

linlone

如果grep命令多个文件名，输出中包含文件名：

1. 
   
2. $ cat A.txt
   
3. hello
   
4. world
   
5. 
   
6. $ cat B.txt
   
7. fuck
   
8. hello
   
9. you
   
10. 
    
11. $ grep hello A.txt
    
12. hello
    
13. 
    
14. $ grep hello A.txt B.txt
    
15. A.txt:hello
    
16. B.txt:hello
    

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我期望是这样，如何做到呢？

1. $ grep hello A.txt B.txt
   
2. hello
   
3. hello

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reyleon

grep -h ...

-h, --no-filename
              Suppress the prefixing of file names on output.  This is the default when there is only one file (or only standard input)  to
              search.

linlone

搞定，谢谢

杰瑞26

1. 
   
2. root@localhost:~# grep hello A.txt B.txt | awk -F: '{print $(NF)}'
   
3. hello
   
4. hello
   
5. root@localhost:~# grep -h hello A.txt B.txt
   
6. hello
   
7. hello
   

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sunzhiguolu

1. perl -0nle 'BEGIN{$s="hello"}{push (@a,$s)if(/$s/)}END{print join("\n",@a)}' a b

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hello
hello