| \d | the date in “Weekday Month Date” format | 
| \h | the host name up to the first | 
| \H | the host name | 
| \n | newline | 
| \s | the name of the shell, the base name of $0 | 
| \t | the current time in 24-hour HH:MM:SS format | 
| \T | the current time in 12-hour HH:MM:SS format | 
| \@ | the current time in 12-hour AM/PM format | 
| \u | the user name of the current user | 
| \w | the current working directory | 
| \! | the history number of this command | 
| \# | the command number of this command | 
| \$ | if the effective UID is 0, $ otherwise | 
| \W | the base name of the current working directory |