How to create a confirmation question in Linux?

Question

I have a certain command (git push server-name) that has major consequences. How to require confirmation for this command only? It should ignore white space.

The confirmation could be Enter 'yes i am sure.' to confirm:

By the way, there is another command that does not require confirmation: git push server-name-staging.

Answer 1

Alias git to a script you're going to write:

$ alias git=mygit

...which lives in your PATH somewhere and looks like this:

#!/bin/sh
if [ "$1" = "push" ]
then
    /bin/echo -n "Enter 'yes i am sure.' to confirm: "
    read answer
    if [ "$answer" != "yes i am sure." ]
    then
        echo So indecisive...
        exit 1
    fi
fi

git "$@"