The DECevent utility is an event management utility that
    provides the interface between a system user and the operating
    system's event log files on OpenVMS Alpha system. It allows
    system users to produce ASCII reports derived from system event
    entries. The format of the ASCII reports depends on the command
    entered on the command line interface (CLI), with a maximum
    character limit of 255 characters. DECevent also provides for
    the analysis and interpretation of data contained in event log
    files.

    DECevent uses the system event log file, SYS$ERRORLOG:ERRLOG.SYS,
    as the default input file, unless another input file is
    specified.

                                   NOTE

       On Alpha DS, ES, and GS systems (other than the AlphaServer
       GS60 and GS140 systems) running OpenVMS, use the Web-Based
       Enterprise Services (WEBES), which includes the Compaq
       Analyze, the Compaq Crash Analysis Tool (CCAT), and the
       Revision and Configuration Management (RCM) tools.

       You can find WEBES and its documentation on the Compaq
       System Tools CD-ROM, which is included in the OpenVMS
       Version 7.3 CD-ROM package. You can find the most up-to-date
       service tool information at the following location:

           http://www.support.compaq.com/svctools

       You cannot use WEBES on the AlphaServer GS60 or the
       AlphaServer GS140. DECevent and the WEBES tools can be used
       together in a cluster.

    The DECevent utility translates the contents of one or more event
    log files for inclusion into a report. DECevent produces five
    types of reports: full (default), brief, terse, summary, and
    FSTERR. These report types are mutually exclusive when selected
    within a command; no combinations are allowed. DECevent also
    provides for the analysis and interpetation of that data.

    For complete help on the DIAGNOSE command, enter HELP DIAGNOSE at
    the DCL prompt.