Update day15.md

Maybe (") is needed here. Maybe.
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Devarsh 2022-10-28 20:07:50 +05:30 committed by GitHub
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@ -99,7 +99,7 @@ If you are like me and you use that `clear` command a lot then you might miss so
When you run `history` and you would like to pick a specific command you can use `!3` to choose the 3rd command in the list.
You are also able to use `history | grep "Command` to search for something specific.
You are also able to use `history | grep "Command"` to search for something specific.
On servers to trace back when was a command executed, it can be useful to append the date and time to each command in the history file.