PROMPT_COMMAND

4.1. PROMPT_COMMANDBash provides an environment variable called PROMPT_COMMAND. The contents of this variable are executed as a regular Bash command just before Bash displays a prompt. [21:55:01][giles@nikola:~] PS1="[\u@\h:\w]\$ " [giles@nikola:~] PROMPT_COMMAND="date +%H%M" 2155 [giles@nikola:~] d bin mail 2156 [giles@nikola:~] What happened above was that I changed PS1 to no longer include the