The vi editor is available if you login to the shell using rlogin or telnet. It is not available if you login using the OMVS command. The vi editor is a full-featured text editor with the following major features:

• Full-screen editing and scrolling capability
• Separate text entry and edit modes
• Global substitution and complex editing commands using the underlying ex commands.

This overview just introduces some fundamentals to help you get started. For more information, see Advanced vi topics and the vi command description in z/OS UNIX System Services Command Reference.