學習足跡
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Linux CLI 提示字元的設定
提示字元變數名稱:PS1(1為數字1)
- \d :可顯示出『星期 月 日』的日期格式,如:"Mon Feb 2"
- \H :完整的主機名稱。舉例來說,鳥哥的練習機為『www.vbird.tsai』
- \h :僅取主機名稱在第一個小數點之前的名字,如鳥哥主機則為『www』後面省略
- \t :顯示時間,為 24 小時格式的『HH:MM:SS』
- \T :顯示時間,為 12 小時格式的『HH:MM:SS』
- \A :顯示時間,為 24 小時格式的『HH:MM』
- \@ :顯示時間,為 12 小時格式的『am/pm』樣式
- \u :目前使用者的帳號名稱,如『root』;
- \v :BASH 的版本資訊,如鳥哥的測試主機版本為 3.2.25(1),僅取『3.2』顯示
- \w :完整的工作目錄名稱,由根目錄寫起的目錄名稱。但家目錄會以 ~ 取代;
- \W :利用 basename 函數取得工作目錄名稱,所以僅會列出最後一個目錄名。
- \# :下達的第幾個指令。
- \$ :提示字元,如果是 root 時,提示字元為 # ,否則就是 $ 囉~
- txtblk='\e[0;30m' # Black - Regular
- txtred='\e[0;31m' # Red
- txtgrn='\e[0;32m' # Green
- txtylw='\e[0;33m' # Yellow
- txtblu='\e[0;34m' # Blue
- txtpur='\e[0;35m' # Purple
- txtcyn='\e[0;36m' # Cyan
- txtwht='\e[0;37m' # White
- bldblk='\e[1;30m' # Black - Bold
- bldred='\e[1;31m' # Red
- bldgrn='\e[1;32m' # Green
- bldylw='\e[1;33m' # Yellow
- bldblu='\e[1;34m' # Blue
- bldpur='\e[1;35m' # Purple
- bldcyn='\e[1;36m' # Cyan
- bldwht='\e[1;37m' # White
- unkblk='\e[4;30m' # Black - Underline
- undred='\e[4;31m' # Red
- undgrn='\e[4;32m' # Green
- undylw='\e[4;33m' # Yellow
- undblu='\e[4;34m' # Blue
- undpur='\e[4;35m' # Purple
- undcyn='\e[4;36m' # Cyan
- undwht='\e[4;37m' # White
- bakblk='\e[40m' # Black - Background
- bakred='\e[41m' # Red
- bakgrn='\e[42m' # Green
- bakylw='\e[43m' # Yellow
- bakblu='\e[44m' # Blue
- bakpur='\e[45m' # Purple
- bakcyn='\e[46m' # Cyan
- bakwht='\e[47m' # White
- txtrst='\e[0m' # Text Reset
- \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
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