zenity
Display GTK dialogs from shell scripts
TLDR
Display the default question dialog
$ zenity --question
Display an info dialog with a message$ zenity --info --text "[message]"
Display a name/password form with custom separator$ zenity --forms --add-entry "[name_label]" --add-password "[password_label]" --separator ";"
Display a file selection for directories only$ zenity --file-selection --directory
Display a progress bar that updates$ (echo "#1"; sleep 1; echo "50"; echo "#2"; sleep 1; echo "100") | zenity --progress
SYNOPSIS
zenity [options]
DESCRIPTION
zenity displays GTK+ dialogs from command-line scripts. It provides various dialog types including questions, information, file selection, progress bars, and forms.
Return values indicate user action: 0 for OK/Yes, 1 for Cancel/No, 5 for timeout, and -1 for errors. Form data is returned on stdout.
PARAMETERS
--question
Display a question dialog with Yes/No buttons--info
Display an information dialog--warning
Display a warning dialog--error
Display an error dialog--file-selection
Display a file selection dialog--forms
Display a forms dialog--progress
Display a progress dialog--text _text_
Set dialog text--add-entry _label_
Add a text entry field (forms)--add-password _label_
Add a password field (forms)--directory
Allow only directory selection--separator _char_
Set output separator
CAVEATS
Requires a graphical environment (X11 or Wayland with XWayland). Dialog appearance depends on GTK theme. For KDE environments, consider kdialog as an alternative.