RE: Unix tee command

From: Norrell, Brian <BNorrell_at_QuadraMed.com>
Date: Wed, 11 Jul 2001 08:37:33 -0700
Message-ID: <F001.00347238.20010711074127@fatcity.com>

The tee command duplicates its input, sending one copy to the file, and the other to the screen (or the next command in the pipe).

You get to see your data and save it too.

Brian Norrell
Manager, MPI Development
QuadraMed
511 E John Carpenter Frwy, Su 500
Irving, TX 75062
(972) 831-6600

-----Original Message-----
Sent: Wednesday, July 11, 2001 9:12 AM
To: Multiple recipients of list ORACLE-L

I do not understand the difference between these two commands:

        script_file > log_file
        script_file | tee log_file

As I understand, the first runs and redirects its standard output to a log file. The second runs and pipes its standard output to the tee command, which copies its standard input into its standard output. I have been instructed to use the latter, but dont want to do it blindly without understanding why.

Thanks
Erik

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Author: Erik Williams
INET: ewilliams_at_brownco.com

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Author: Norrell, Brian
INET: BNorrell_at_QuadraMed.com

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