Shell CustomizationΒΆ
There will come a time when some modification of the shell environment will be desired. Fortunately, in bash this is very easily done.
Table C-1. Bash Configuration File
| File | Description |
|---|---|
/etc/profile |
System login environment |
/etc/bashrc |
System environment |
~/. bash\_profile |
User login environment |
~/. bashrc |
User environment |
~/. bash\_logout |
User logout script |
If no .bash_profile, then .bash_login, then .profile.
Table C-2. Prompt String Customization
| Command | Meaning |
|---|---|
\d |
The date in “Weekday Month Day” format |
\H |
The hostname |
\h |
The hostname up to the firlst ”.” |
\n |
A carriage return and line feed |
\T |
The current time in 12-hour HH:MM:SS format |
\t |
The current time in HH:MM:SS format |
\@ |
The current time in 12-hour am/pm format |
\u |
The username of the current user |
\w |
The current working directory |
\W |
The basename of the current working directory |
\# |
The command number of the current command |
\! |
The history number of the current command |
\$ |
If the effective UID is 0 print a #, otherwise print a $ |
\\ |
Print a backslash |
