How to search for multiple strings in a file

Posted by topwoman on Stack Overflow See other posts from Stack Overflow or by topwoman
Published on 2010-04-06T11:36:24Z Indexed on 2010/04/06 12:13 UTC
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bash

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search

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strings

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file

I want to search for the occurrence of string1 OR string2 OR string3, etc. in a file, and print only those lines (to stdout or a file, either one). How can I easily do this in bash?

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