Search Mulitiple String pattern in a file

krishnan_6015@y · #1 (**permalink**) 11-23-2007

Hi,

I need to search for a multiple string pattern(5 key words) in a file(similar to a flat file) ,and i need to store the output in a another file .

In that file we may have mutiple occurrences of the key words.and i need only the unique.

kindly help out.

Thanks,
Mohana Krishnan

chella · #2 (**permalink**) 11-23-2007

Quote:

Originally Posted by krishnan_6015@y

Hi,

I need to search for a multiple string pattern(5 key words) in a file(similar to a flat file) ,and i need to store the output in a another file .

In that file we may have mutiple occurrences of the key words.and i need only the unique.

kindly help out.

Thanks,
Mohana Krishnan

Hi Mohana Krishnan,

I don't understand this line. Can you explain it.

In that file we may have mutiple occurrences of the key words.and i need only the unique.

To search multiple patterns in a file u can use grep with -e option.

grep -e pattern1 -e pattern2 -e pattern3 filename > newfile.

Regards,
Chella

LivinFree · #3 (**permalink**) 11-23-2007

Or 'egrep / grep -E':

Code:

egrep 'term1|term2|term3'

More UNIX and Linux Forum Topics You Might Find Helpful
Thread	Thread Starter	Forum	Replies	Last Post
search pattern in a string and rename	deepakgang	UNIX for Dummies Questions & Answers	6	06-02-2008 02:43 AM
Advance string pattern search Please	sainj	Shell Programming and Scripting	2	10-30-2007 10:56 AM
appending string to text file based on search string	malaymaru	Shell Programming and Scripting	1	06-09-2006 09:53 AM
Search a file for pattern?	davjoyce	UNIX for Dummies Questions & Answers	2	03-07-2006 06:07 PM
Search file for pattern and grab some lines before pattern	frustrated1	Shell Programming and Scripting	2	12-22-2005 03:41 PM

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search
Display Modes	Rate This Thread
Switch to Linear Mode Hybrid Mode Switch to Threaded Mode	Rate This Thread:


	Powered by