Files:
     AAAREADME.TXT   - this file
     HOT_START.COM   _ restart logger on the fly if it was shut off for some
                       unusual reason or for the end of the month report
     LOGGER.FOR      _ the main program, runs detached
     LOGGER_MONTH.COM- runs at the beginning of each month, runs log_report.com
     LOG_REPORT.FOR  - Generates monthly uptime reports
     START_LOGGER.COM- starts logger within systartup
     STOP_LOGGER.COM - stops logger within syshutdwn
     VAXA.WORK       - sample work file (timestamp)
     VAXA_88_LOG.DAT - sample data archive file
     VAXA_REPORT.DAT - sample monthly uptime report
       


                                LOGGER

     Logger is a program that logs shutdowns, startups, crashes and
   reasons for crashes to a file.  It is a rework of the original program
   written by someone else in the C language.  These programs produce a
   useful monthly uptime report.

     Logger runs in two modes.  On shutdown and startup it passes a
   parameter (either Shutdown or Startup) which is written to a file
   along with a timestamp.  During normal operation, logger timestamps
   a work file every ten minutes and a log file once a day.  Thus the 
   logfile would look something like this:

 20-DEC-1987 08:03:35 Startup
 21-DEC-1987 11:31:15 Timestamp
 22-DEC-1987 23:03:01 Timestamp
 23-DEC-1987 08:22:42 Timestamp
 23-DEC-1987 09:33:55 Shutdown
 23-DEC-1987 10:01:01 Startup
 24-DEC-1987 01:09:17 Timestamp
 25-DEC-1987 00:00:35 Timestamp
 26-DEC-1987 08:03:35 Crash?
 26-DEC-1987 09:37:29 OPERATOR, Operator requested system Shutdown
 26-DEC-1987 09:47:11 Timestamp

     The logfile should contain ONE timestamp per day as well as any 
   crash/shutdown and startup messages.
 
     In addition to the logfile (named nodename_LOG_FILE.DAT) and the work
   file (named nodename.WORK) Logger also depends on a startup and shutdown
   file.  The startup file, START_LOGGER.COM is activated within Systartup.
   It Checks the logfile to see if the last entry was indeed a Shutdown
   timestamp.  If not, it assumes that a crash occurred and analyzes the 
   crash dump to get the time and reason.  It then enters a startup time-
   stamp into the logfile and starts logger up as a detached process using
   the /INTERVAL qualifier to have Logger re-executed every ten minutes.
   The shutdown procedure STOP_LOGGER.COM, merely writes a shutdown timestamp 
   to the logfile and stops logger.  It is triggered from syshutdwn.com

     The source code for Logger can either get the nodename and construct
   the proper file names or can use the logicals defined in START_LOGGER.
   But in either case, the work and logfiles MUST be present upon startup
   and they MUST NOT be empty.

     Finally, all crashes are saved in the subdirectory [syslog.crash] and
  are labeled by the day and month of the crash.

    On a monthly basis LOGGER_MONTH.COM closes out the datafile, appends it
to the annual datafile and runs LOG_REPORT.EXE to generate uptime statistics