How to undo or delete a terminal command

I tried to turn off the faces function in iPhoto through a command I found on apple communities and cut and paste into Terminal. Now the search capability in Mail is not functioning properly. How do I delete commands I've pasted into Terminal? I tried to delete them but when I went back in they are still there. Is deleting previous commands the right was to fix this problem.

Thank you in advance!

MacBook Pro

Posted on Sep 27, 2016 12:24 AM

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How to undo or delete a terminal command

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