Modal Commands

You cannot use these commands when Access Method Services is running in Time Sharing Option (TSO).
  • IF-THEN-ELSE command sequence, which controls command execution on the basis of condition codes
  • NULL command, which causes the program to take no action
  • DO-END command sequence, which specifies more than one functional access method services command and its parameters
  • SET command, which resets condition codes
  • CANCEL command, which ends processing of the current job step
  • PARM command, which chooses diagnostic aids and options for printed output.