想必在命令行模式用久了，都看厭了那個單調又丑的提示符，個人認為還占了些位，要是命令長的話還會斷行.

想改成

cd ~/ touch .bash_profile vim .bash_profile

osx環境下操作的，關鍵語法 \[顏色\]prompt參數\[$reset\] 例如：\[$red\]\t\[$reset\]

reset=$(tput sgr0) green=$(tput setaf 2) yellow=$(tput setaf 3) blue=$(tput setaf 4) magenta=$(tput setaf 5) cyan=$(tput setaf 6)PS1="\[$magenta\]\u\[$reset\] at \[$blue\]\h\[$reset\] in \[$yellow\]\W\n\[$reset\]\[$green\]\$\[$reset\]" export PS1

:wq 保存離開

source .bash_profile

tput命令使用方式

prompt參數:

• \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(換行)
• \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

文章參考，文章參考2

轉載于:https://www.cnblogs.com/jHenry/p/4263450.html

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