dialog 命令

常用示例

说明

dialog displays dialog boxes from shell scripts, providing a user-friendly text-based interface for interactive scripts. It supports various widget types including message boxes, input boxes, menus, checklists, radio lists, progress bars, and file selection dialogs. The program uses the ncurses library to create pseudo-graphical interfaces in text terminals. This enables shell scripts to present professional-looking user interfaces without requiring a graphical environment. Output is written to stderr (or a specified file), while exit status indicates which button was pressed (0 for OK/Yes, 1 for Cancel/No, 255 for ESC). This design allows scripts to capture both user selections and continue using stdout for other purposes. dialog is widely used in system administration scripts, installation programs, and configuration utilities.

参数

--msgbox _text_ _height_ _width_

Display message with OK button

--yesno _text_ _height_ _width_

Yes/No question dialog

--inputbox _text_ _height_ _width_ _init_

Text input dialog

--menu _text_ _height_ _width_ _menu-height_ _tag_ _item_...

Menu selection

--checklist _text_ _height_ _width_ _list-height_ _tag_ _item_ _status_...

Checkbox selection

--radiolist _text_ _height_ _width_ _list-height_ _tag_ _item_ _status_...

Radio button selection (single choice)

--gauge _text_ _height_ _width_ _percent_

Progress bar display

--passwordbox _text_ _height_ _width_

Password input (hidden characters)

--fselect _filepath_ _height_ _width_

File selection dialog

--calendar _text_ _height_ _width_ _day_ _month_ _year_

Calendar date selection

--title _title_

Set dialog title

--backtitle _title_

Set background title at top of screen

--clear

Clear screen on exit

--colors

Enable embedded color codes in dialog text

--output-fd _fd_

Output to specified file descriptor instead of stderr