改变shell命令提示符

最新推荐文章于 2025-08-06 13:14:12 发布

alex_czhang

最新推荐文章于 2025-08-06 13:14:12 发布

阅读量1k

点赞数

CC 4.0 BY-SA版权

分类专栏： Linux Configuration 文章标签： shell character terminal command newline bash

本文链接：https://blog.youkuaiyun.com/alex_czhang/article/details/4906694

Linux Configuration 专栏收录该内容

2 篇文章

订阅专栏

改变title

PROMPT_COMMAND='echo -ne "/033]0;${USER}@${HOSTNAME}: ${PWD}/007"'
这样在terminal的title就会显示用户@机器名：路径。

改变命令提示符的颜色：

在~/.bashrc中添加：（绿色）

export PS1="/[/033[32m/][/w]/$/[/033[0m/] “

在/root/.bashrc：（红色）

export PS1="/[/e[31m/][/w]#/[/e[0m/] “

NOTICE:

1. /033[32m 表示后面的字符要用绿色。/033 也可用/e（0m，表示用default。30（黑色）、31（红色）、32（绿色）、 33（黄色）、34（蓝色）、35（洋红）、36（青色）、37（白色）。

2. /[ 和 /] 对于每个颜色参数，都要用着两个转义符包起来。至少字Ubuntu上，必须这么设置。

3. /$好像不怎么起作用，当sudo到root用户时，仍然显示$,理想是#。所以可以直接用$，不用转义/$

PS:

/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
/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
/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
/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 $
/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 control sequence into the prompt
/] : end a sequence of non-printing characters