Narendra Sisodiya: Zenity - add GUI dialogs to your shell scripts !

Zenity is the best tool for creating GUI for shell scripts.

for example -

szDate=$(zenity --calendar --text "Pick a day" --title "Medical Leave" --day 23 --month 5 --year 2008); echo $szDate

will open a datepicker dialog box. like this.

Other use
** Date Picker
** File Picker
** Display warning
** Asking yes/no questions
** Display Processbar
**

Have a look at this tutorial -

Narendra Sisodiya