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Speed Up Grep

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linux-howto

http://www.unix.com – Hi, I have to grep string from 20 - 30 files each carries 200 - 300 MB size and append to the file. How to speed the grepping time. Code: cat catalina.out_2012_01_01 | grep "xxxxx"  >> backup.txt PLZ, Suggest me, Regards, Nanthagopal A (HowTos)