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Best way to search file or string for duplicate entries

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linux-howto

http://nixcraft.com – I have a very large .conf file which I am adding and removing entries from daily. What is the best method for checking this for duplicate entries. thank you I am running RHEL 5 but prefer to do this from the shell (HowTos)

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Submitted by suki on 09/07/2010 – Made popular on 09/07/2010

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