Change the shell prompt Display Mode

Q: How can I change the shell display mode to [complete working directory of username @ host] $ to [last working directory of username @ host] $

Solution: Add export PS1 = '[/u @/h/W]/$' to. bashrc'

Note:

In Linux, there are two variables for the system prompt: PS1 and PS2. PS1 is the system prompt. The general format is:
[Username @ host
Working directory] #, that is, username + Host Name (generally IP address) + current working directory (you can list the last directory or all directories) + # (root user is #, the average user is $ ).
Enter the first line of PS2, and wait for the prompt entered in the second line. Generally>.

First use echo to display the PS1 parameter, Echo $ ps1, and the result is/S-/V/$ (I added a space in the middle ). According to the definition of characters in environment variables:

 

/D: represents the date, in the format of weekday month date, for example: "Mon Aug 1"
/H: complete host name. For example, if my machine name is fc4.linux, this name is fc4.linux.
/H: only the first name of the host. In the preceding example, the name is FC4, and the name of. Linux is omitted.
/T: The display time is in the 24-hour format, for example, HH: mm: Ss.
/T: The display time is 12 hours.
/A: The display time is in the 24-hour format: hh: mm
/U: Account name of the current user
/V: Bash version information
/W: complete working directory name. In the home directory ~ Replace
/W: Use basename to get the working directory name. Therefore, only the last directory is listed.
/#: Commands issued

 

/$: The prompt character. If it is root, the prompt is: #, and the normal user is: $