redirected output

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# 1  
redirected output

Hello Everyone,
I have an option for users in my shell script to create log file. So if user saying yes on it, Im redirecting all output to log file by doing this: > /output.log. However I would like the output being displayed on the screen at the same time. Is it possible? If yes, does anybody knows how to do that?
Many thanks in advance.
# 2  
use the tee command. There is a switch -a that will append all output to your log file as well as send it to standard out (your screen). Example tee -a

See man tee
# 3  
Thanks very much , Google. That works!
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