The parameter field specifies the name of the command, at least one blank, and then operands for the command. The command and its operands must be preceded by at least one blank, enclosed in apostrophes, and followed by at least one blank. The maximum length of the command is 123 characters. If the command operand contains an apostrophe, code it as two apostrophes. You can specify any MVS™ command that can be issued from the operator’s console.