What are the three ways a user can invoke the z/OS UNIX shell? INFS What are the three ways a user can invoke the z/OS UNIX shell? (1) From a 3270 display or a workstation running a 3270 emulator (2) From a TCP/IP-attached terminal, using the rlogin and telnet commands (3) From a TSO session, using the OMVS command Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+