Prepending to the terminal's prompt
For some work I’m doing, I have been given access to a Linux box that is part of a legacy production system.
The first thing I have done is updated the terminal prompt to include the word PRODUCTION in red, by adding this to .bashrc:
export PS1="$(tput setaf 1)PRODUCTION $(tput sgr0)$PS1"
The nice thing about doing it this way is that I don’t have to worry about whatever is in PS1 already.
Not the most complex thing and gives me a tell that I need to be careful.