dialog Linux教学课件.ppt

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shell dialog dialog session affinity In-memory Engine上的jvmRoute参数, cluster web.xml distributable/ 时间同步 关闭,session affinity /sess What is dialog? A program that will let you to present a variety of questions or display messages using dialog boxes from a shell script. Created by Savio Lam, and currently maintained by Thomas E. Dickey Use the dialog utility for creating TTY (terminal) dialog boxes. dialog package The dialog command uses command line parameters to determine what type of Window widget to produce. A widget is the dialog package term for a type of Windows element. Each dialog widget provides output in two forms: Using STDERR Using the exit code status “OK” : 0 “Cancle” , “No” : 1 Syntax dialog --common-options --boxType Text Height Width --box-specific-option --common-options are used to set dialog boxes background color, title, etc. All dialog boxes have at least three parameters: Text?: The caption or contents of the box. height?: The height of the dialog box. width?: The width of the dialog box. dialog --print-maxsize dialog --create-rc file The first dialog box dialog --backtitle “The first dialog box” --title “Hello” --yesno “Is this your first dialog box?” 7 25 common-options --backtitle backtitle Specifies a backtitle string to be displayed on the backdrop, at the top of the screen. --begin y x Specify the position of the upper left corner of a dialog box on the screen. --colors Interpret embedded \Z sequences in the dialog text by the following character, 0-7, b, B, u, U, ect Restore normal settings with \Zn common-options(2) --defaultno Make the default value of the yes/no box a No. --default-item string Set the default item in a checklist, form or menu box. Normally the first item in the box is the default. --insecure Makes the password widget friendlier but less secure, by echoing asterisks for each character. common-options(3) --nocancel Suppress the Cancel button in checklist, inputbox and menu box modes. --nook Suppress the OK

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