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How to grep all the files inside the directory and Sub directory

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Top Forums Shell Programming and Scripting How to grep all the files inside the directory and Sub directory
# 8  
Old 08-24-2012
grep'ing some strings
If you want to search multiple strings in a particular folder use the below commands.

Code:
grep -r '<pattern1>\|<pattern2>\|etc' /path/to/dirctory

the above command will yield the output of line containing the pattern in all files in that particular directory.

If you want to list the files alone which has the pattern use the command given below

Code:
grep -lr  '<pattern1>\|<pattern2>\|etc' /path/to/dirctory


Moderator's Comments:
Mod Comment Please use code tags next time for your code and data.
Last edited by zaxxon; 08-24-2012 at 05:28 AM.. Reason: code tags
# 9  
Old 08-24-2012
Quote:
Originally Posted by priyak
If you want to search multiple strings in a particular folder use the below commands.

grep -r '<pattern1>\|<pattern2>\|etc' /path/to/dirctory

the above command will yield the output of line containing the pattern in all files in that particular directory.

If you want to list the files alone which has the pattern use the command given below

grep -lr '<pattern1>\|<pattern2>\|etc' /path/to/dirctory
This will print/select only those lines which contain either <pattern1> or <pattern2> or .... That's not the same as <pattern1> and <pattern2> and ... which the OP seemingly desires.
# 10  
Old 08-24-2012
Hi elixir_sinari,

Have tried using that command. When i attempted it resulted me with both the patterns.I think you have misunderstood the symbol '|' Smilie
# 11  
Old 08-24-2012
Check this:
Code:
$ cat testfile
WORD1 WORD2
ONLY WORD1
ONLY WORD2

$ grep 'WORD1\|WORD2' testfile
WORD1 WORD2
ONLY WORD1
ONLY WORD2

Now, don't you wonder why I am getting all three lines when I require only the first line which has both WORD1 and WORD2?

With slight modifications:
Code:
$ grep 'WORD1.*WORD2\|WORD2.*WORD1' testfile
WORD1 WORD2

Do you still think I am mistaken?
This User Gave Thanks to elixir_sinari For This Post:
priyak
# 12  
Old 08-24-2012
sorry dude... now its clear... actually i was little bit confused
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