Hello guys, I am having a peculiar problem and i can't find out what is problem. I have this script from my linux distribution At the source line, the program asks for the user to type sswidlde to begin the GUI of a program called IDL. so, i have give the and when i run in terminal It returns (the printed message from the source command). But it does not begin. Now, if run the script line by line in the terminal, as The program starts! What is wrong with the script?