Immediate Commands
Immediate Commands You can issue an Immediate command from the terminal only after causing
an attention interruption by pressing the Attention key (or its
equivalent). These commands are processed as soon as they are entered.
The HT and RT Immediate commands are also recognized when they are
stacked in an EXEC procedure, and the HT Immediate command can be
appended to a CMS command preceded by a logical line end symbol (I). Any program execution in progress is suspended until the Immediate
command is processed.
None of the Immediate commands issue responses. Use the HB command to stop the
at the end of the current job.
is: r , HB L- execution of a CMS batch virtual machine
The format of the HB Immediate command
, II 1. If the batch virtual machine is running disconnected, it must be
reconnected.
2. when the HB command is executed, eMS sets a ILag such at the
end of the current job, the batch processor generates accounting
information for the current job and then logs off the CMS batch
virtual machine. HQ Use the HO command during the execution of a command or one of your programs to stop the recording of trace information. Program execution
continues to its normal completion, and all recorded trace information
is spooled to the printer. The format of the HO command is: r---- , HO L- Section 2. CMS Commands 213

Immediate Commands Use the HT command to suppress all terminal output generated by any C"S command or your program that is currently executing. The format of the H'!' command is:
r---- --------.--------------.-------------------------.---------, I HT '--- 1 • Program execution continues. When the
normal terminal output resumes. Use typing or displaying. , ready message is displayed,
the RT command to restore
2. CMS error messages having a suffix letter of S or T cannot be
suppressed. Use the HX command to stop the execution of any C"S or CMS/DOS command
or program, close any open files or I/O devices, and return to the C"S command environment. The format of the HX command is: r---- , HX L- -l i. HX clears all file definitions made via tne FILEDEF or DLBL
commands, including those entered with the PER" option.
2. The HX command is executed when the next SVC or 110 interruption
occurs: therefore a delay may occur between keying HX and the
return to C"S. All terminal output generated before HI is
processed is displayed before the command is executed.
3. HX does not clear user storage. EQ Use the RO command, during the execution of a command or one of your
programs, to resume the recording of trace information that was
temporarily suspended by the SO command. Program execution continues to
its normal completion, and all recorded trace information is spooled to
the printer. The format of the RO command is: r --------------------------------------------------------, , RO , L- 21U IBM CMS Command and Macro Reference