A quick reference how to modify the bash prompt, using the PS1 environment variable. This is useful for presentations for example.

Basic usage

Just modify the PS1 environment variable.

export PS1="hello world > "

# the default on most systems
export PS1="\u@\h:\w\$ "

Some useful variables

Var Result
\u Username
\h Hostname
\w Working directory
\W Last part of working directory
\$ # if root, else $
\A Time (hh:mm)
\t Time (hh:mm:ss)

…there are a few more.

Make it persistent

Just put it in your ~/.bashrc

echo export PS1="\u@\h:\w\$ " >> ~/.bashrc