Connecting to the shell

To work interactively, the shell user connects to the system in one of the following ways:

Logs on to TSO/E and enters the TSO/E command OMVS, which invokes a shell. The OMVS command provides a 3270 terminal interface to the shell, and you can use the options to customize the interface - for example, function key settings.
Issues the rlogin command, which invokes the shell. It provides an asynchronous terminal interface to the shell, which is familiar to UNIX users.
Issues the telnet command, which invokes the shell. It provides an asynchronous terminal interface to the shell, which is familiar to UNIX users.

See z/OS UNIX System Services User's Guide for a description of these interfaces to the shell.

After the user logs in to the shell, the system initializes the shell. See Customizing the z/OS UNIX shells for information about customizing the shell invocation.