It saves in a text file (called typescript) everything that appears on the screen.
By typing script at the UNIX prompt.
To exit script press CTRL D
This example shows you how to get a printout of your directory's files, but script can be used for much more. For instance, one common use is to obtain a printout of a program's inputs and outputs.
Warning: Everything that appears on your screen will go into a file called typescript. If you have a previous file called typescript the new file will replace the existing one.
Type script at the UNIX prompt. (UNIX will reply that you have started a script session.)
Type ls (shows you a list of your files.)
Press CTRL D (exits you from script. "You must exit from script in order to get a printout.")
Type pr typescript (prints typescript file.)