input-file

    Supplies one or more names of binary error log files to be used
    to produce a new binary error log file.

    If you do not specify an input file, the default input file is
    SYS$ERRORLOG:ERRLOG.SYS. If you do not specify a device and
    directory, your current device and directory are used. If you
    do not specify a file name, the default file name is ERRLOG. If
    you do not specify a file type, the default file type is .SYS.