It can be nice to have different color prompt on the terminal screen to differentiate different login. the following code simply set up PS1 to have yellow prompt on the terminal screen, which can be appended in your .bash_profile
# set our custom yellow prompt
PS1=’\[33[1;33m\]\u\[33[1;37m\]@\[33[1;33m\]\h\[33[1;37m\]:\[33[1;33m\]\W \[33[1;33m\]\$ \[33[0m\]‘
# set our custom red prompt to visually identified root
PS1=’\[33[1;31m\]\u\[33[1;37m\]@\[33[1;31m\]\h\[33[1;31m\]:\[33[1;31m\]\W \[33[1;31m\]\$ \[33[0m\]‘
