\a – A bell character
    \d – Date (day/month/date)
    \D{format} – Use this to call the system to respond with the current time
    \e – Escape character
    \h – Hostname (short)
    \H – Full hostname (domain name)
    \j – Number of jobs being managed by the shell
    \l – The basename of the shells terminal device
    \n – New line
    \r – Carriage return
    \s – The name of the shell
    \t – Time (hour:minute:second)
    \@ – Time, 12-hour AM/PM
    \A – Time, 24-hour, without seconds
    \u – Current username
    \v – BASH version
    \V – Extra information about the BASH version
    \w – Current working directory ($HOME is represented by ~)
    \W – The basename of the working directory ($HOME is represented by ~)
    \! – Lists this command’s number in the history
    \# – This command’s command number
    \$ – Specifies whether the user is root (#) or otherwise ($)
    \\– Backslash
    \[ – Start a sequence of non-displayed characters (useful if you want to add a command or instruction set to the prompt)
    \] – Close or end a sequence of non-displayed characters