控制shell终端提示符格式和颜色

字体颜色值 （ASCII）	背景颜色值 (ASCII)	显示颜色
30	40	黑色
31	41	红色
32	42	绿色
33	43	黄色
34	44	蓝色
35	45	紫红色
36	46	青蓝色
37	47	白色

符 号值	特效	取反
0	OFF
1	HighLight
2	半亮	22
4	UndeLine	24
5	Blink	25
7	反白	27
8	不可见

注：若着色不对，哈哈，请认为我是色盲吧。

特殊字符着色规则：

着色开始　　　　着色结束

　[e[*m]　　　　　e[0m

若使用背景颜色或特效需要用;分割成*;*格式 ，"*"代表表中数值（其值见上两表）；

如：（方式一 非永久性）

　　

# .bashrc
 
export PS1="你的设置"

# Source global definitions
if [ -f /etc/bashrc ]; then
    . /etc/bashrc
fi

# User specific aliases and functions

特殊字符语法规则：

              a     an ASCII bell character (07)
              d     the date in "Weekday Month Date" format (e.g.,  "Tue  May
                     26")
              D{format}
                     the  format  is  passed  to strftime(3) and the result is
                     inserted into the prompt string; an empty format  results
                     in a locale-specific time representation.  The braces are
                     required
              e     an ASCII escape character (033)
              h     the hostname up to the first ‘.’
              H     the hostname
              j     the number of jobs currently managed by the shell
              l     the basename of the shell’s terminal device name
              
     newline
              
     carriage return
              s     the name of the shell, the basename of  $0  (the  portion
                     following the final slash)
              	     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
              A     the current time in 24-hour HH:MM format
              u     the username of the current user
              v     the version of bash (e.g., 2.00)
              V     the release of bash, version + patch level (e.g., 2.00.0)
              w     the current working  directory,  with  $HOME  abbreviated
                     with  a tilde (uses the value of the PROMPT_DIRTRIM vari-
                     able)
              W     the basename of the current working directory, with $HOME
                     abbreviated with a tilde
              !     the history number of this command
              #     the command number of this command
              $     if the effective UID is 0, a #, otherwise a $
              
nn   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  control  sequence  into  the
                     prompt
              ]     end a sequence of non-printing characters

这是我的 （方式二）

编辑.bashrc文件

$ vim ~/.bashrc

在该文件的
# User specific aliases and functions

下面添加如下内容

c1="[e[36m]"
c2="e[0m"
c3="[e[35m]"
c4="[e[32m]"
c5="[e[30m]"
c6="[e[31m]"
c7="[e[34m]"

export PS1="$c1[$c2$c5	$c2$c6@$c2$c3u$c2 $c4w$c2$c5]$c2$c7$$c2 "

为什么选 w 呢？因为 cd   很方便嘛......