Jane.doe: Created page with "'''SYS$ERROR''' is a process-permanent logical name that refers to the default device or file to which the system writes messages. =Default..."

2019-11-29T11:37:59Z

Created page with "'''SYS$ERROR''' is a process-permanent logical name that refers to the default device or file to which the system writes messages. =Default..."

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'''SYS$ERROR''' is a [[Process-Permanent Logical Name|process-permanent logical name]] that refers to the default device or file to which the system writes messages.

=Defaults=
In an interactive session, SYS$ERROR points to the terminal. In command procedures executed interactively, SYS$ERROR points to the terminal. In command procedures executed in [[Batch Job|batch mode]] SYS$ERROR points to the batch job log file.

You can redefine SYS$ERROR to direct error messages to a specified file. However, if you redefine SYS$ERROR so it is different from [[SYS$OUTPUT]] (or if you redefine [[SYS$OUTPUT]] without also redefining SYS$ERROR), [[DCL]] commands send informational, warning, error, and severe error messages to both SYS$ERROR and [[SYS$OUTPUT]]. Therefore, you receive these messages twice — once in the file indicated by the definition of SYS$ERROR and once in the file indicated by SYS$OUTPUT. Success messages are sent only to the file indicated by SYS$OUTPUT.

DCL commands and images, which use standard error display mechanisms, send error messages to both SYS$ERROR and [[SYS$OUTPUT]] even when SYS$ERROR is different from SYS$OUTPUT. However, if you redefine SYS$ERROR, then run an image that references SYS$ERROR, the image sends error messages only to the file indicated by SYS$ERROR. This is true even if SYS$ERROR is different from [[SYS$OUTPUT]].

[[Category:Logical Name]]

SYS$ERROR - Revision history

Jane.doe: Created page with "'''SYS$ERROR''' is a process-permanent logical name that refers to the default device or file to which the system writes messages. =Default..."