#!/bin/bash

function g_read {
 if [ -z $DISPLAY ]
 then
  echo -n "$1: "
  read g_read
 else
  g_read=$(zenity --entry --text="$1" --title="$1")
 fi
 g_read_clean=${g_read//[^a-zA-Z0-9 ]/_}
 g_read_clean=${g_read_clean/[ ]/ }
 g_read_clean=$(echo "$g_read_clean" | sed 's/^[ \t]*//;s/[ \t]*$//')
 g_read_numonly=${g_read_clean//[^0-9]/}
}