Function
Changes the properties specified in a LISTFILE entry in :SYSTEM.OUTPUT to the properties specified in the CHANGELIST command. If none are specified in the CHANGELIST command, the property record in the LISTFILE entry is deleted and the output is produced on a central device. It is used mainly to enable a LISTFILE to a device on a given cluster to be changed so that the output appears on a different cluster, but may also be used to change ordinary properties. Note that all the properties required in the LISTFILE entry must be respecified if a CHANGELIST command is used as the properties specified in the original LISTFILE command are deleted.
Format
CHANGELIST user name, job name, output peripheral type, file name,PROPERTYproperty names
The property parameter is optional; but if it is included, PROPERTY may be abbreviated to PR.
Forbidden contexts
NOT OPERATOR
Execution
The appropriate entry or entries are found in :SYSTEM.OUTPUT using the first four parameters. If there is no property parameter, the properties specified in the :SYSTEM.OUTPUT entry are deleted and the LISTFILE is output on a central device. If there is a property parameter, the properties specified replace those in the :SYSTEM.OUTPUT entry.
Note
Due to timing considerations the CHANGELIST command is fairly difficult to use and it will often ben necessary for the operator to disenage the appropriate output device, to wait for the 'PLEASE ENGAGE ...' message, and then give a CANTDO reply, before issuing the CHANGELIST command.
Error Messages
PARAMETER MISSING
EXPRESSION INVALID
THERE IS NO SUCH ENTRY AS z
PERIPHERAL TYPE z NOT AVAILABLE
NOT AVAILABLE DUE TO EXCLUSIVE PROPERTIES
PERIPHERAL PROPERTIES z NOT AVAILABLE
MORE THAN ONE CONSOLE PROPERTY GIVEN
MORE PROPERTIES SPECIFIED THAN ALLOWED
PROPERTIES NAME z UNKNOWN