"Just need to load this dump to the testing database and I'm on my way to weekend...ok done...oh wait, if I look closer, this shell isn't the testing system...hell noooo, just nuked 8 hours of work each from 20 product managers."
Literally happend to me when I was a working student at a DAX 30 corporation. Never happend to me since then again.
For my local computer:
hollander@mypc 19:30:45 ~ >
For servers:
[hollander@server01 19:30:45 ~]
This all with coloring for name, servername, time and filepath, different for local computer and server. Root and username have different colors as well.
Saved me a whole bunch of times when tired.
export PS1="\[\e[31m\]\u\[\e[m\]\[\e[31m\]@\[\e[m\]\[\e[31m\]\h\[\e[m\]\[\e[31m\]:\[\e[m\]\[\e[31m\]\W\[\e[m\] "
Orange
export PS1="\[\e[33m\]\u\[\e[m\]\[\e[33m\]@\[\e[m\]\[\e[33m\]\h\[\e[m\]\[\e[33m\]:\[\e[m\]\[\e[33m\]\W\[\e[m\] "
Green
export PS1="\[\e[32m\]\u\[\e[m\]\[\e[32m\]@\[\e[m\]\[\e[32m\]\h\[\e[m\]\[\e[32m\]:\[\e[m\]\[\e[32m\]\W\[\e[m\] "
As always you can tailor them if you prefer different things to be different colors, I'm often lazy and don't change local machines to green but always change staging to orange and production to red.
I was trying to work out why the system wasn't responding right at the moment when I realised I hadn't logged out of the ssh session.