osx bash prompt 設定

Bash Prompt Escape Sequences

     \a     an ASCII bell character (07)
     \d     the  date  in  "Weekday  Month  Date" format
            (e.g., "Tue May 26")
     \e     an ASCII escape character (033)
     \h     the hostname up to the first `.'
     \H     the hostname
     \n     newline
     \r     carriage return
     \s     the name of the shell, the  basename  of  $0
            (the portion following the final slash)
     \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 username of the current user
     \v     the version of bash (e.g., 2.00)
     \V     the  release  of  bash, version + patchlevel
            (e.g., 2.00.0)
     \w     the current working directory
     \W     the basename of the current  working  direc-
            tory
     \!     the history number of this command
     \#     the command number of this command
     \$     if  the effective UID is 0, a #, otherwise a
            $
     \nnn   the character  corresponding  to  the  octal
            number nnn
     \\     a backslash
     \[     begin a sequence of non-printing characters,
            which could be used to embed a terminal con-
            trol sequence into the prompt
     \]     end a sequence of non-printing characters

example:

在 ~/.bash_profile加上 # Prompt STARTCOLOR='\e[0;33m'; ENDCOLOR="\e[0m" export PS1="$STARTCOLOR\u@ \w $ $ENDCOLOR"