Use the
The scale dialog supports the following options:
Set the dialog text. (Default: Adjust the scale value)
Set initial value. (Default: 0) You must specify value between minimum value to maximum value.
Set minimum value. (Default: 0)
Set maximum value. (Default: 100)
Set step size. (Default: 1)
Print value to standard output, whenever a value is changed.
Hide value on dialog.
The following example script shows how to create a scale dialog:
#!/bin/sh
VALUE=`zenity --scale --text="Select window transparency." --value=50`
case $? in
0)
echo "You selected $VALUE%.";;
1)
echo "No value selected.";;
-1)
echo "An unexpected error has occurred.";;
esac