Contents
How to create a dialog box in Bash?
← Getting information about your system • Home • dialog customization with configuration file → The dialog command allows you to display a variety of questions or display messages using dialog boxes from a shell script. Use the dialog utility for creating TTY (terminal) dialog boxes.
How to display GUI dialogs in bash script using Zenity?
GUI makes any script more user-friendly and beautiful. For GTK in shell scripts, there are many options and tools available in Linux. In this article, we will show you how to use Zenity to display GUI dialogs in Bash scripts. Zenity is an open-source application for displaying simple GUI in shell scripts.
Why do we need GUI in bash script?
We all know that Linux bash scripts are a real strength of Linux. Often we want to display a graphical user interface (GUI) in our scripts to make interaction with users easier. GUI makes any script more user-friendly and beautiful. For GTK in shell scripts, there are many options and tools available in Linux.
When to use the next line in Bash?
The next line is necessary in case the user decides to select the Cancel button in the input box. When that happens, the exit status of the dialog command will be 1. Bash keeps the exit status of the last executed command in the variable $?, so if this is 1, the shell script will stop after clearing the screen.
How to use form dialog in Linux shell?
The form dialog displays data entry form which consisting of labels and fields. You can set the field length. An operator can use up/down arrows to move between fields and tab to move between windows. The syntax is as follows:
How to exit a script in Bash shell?
A few changes have been made. First, the entire script has been included in a while-do loop which is always true. This allows it to run more than once. Now the only way of exiting the script (besides typing ctrl-c) is by selecting the Cancel button in the dialog input box.
How to read a message from a shell script?
Type the following command at a shell prompt: A message box is displayed on the screen with a single OK button. You can use this dialog box to display any message you like. After reading the message, the user can press the ENTER key so that dialog will exit and the calling shell script can continue its operation.