⟦523170e4d⟧

TextFile

^^^^^0100
      COPYSD file_name
 
Copies a single ZDOS file from one diskette to another using a single
disk drive.  The file_name may be fully or partially qualified.  The
source and destination diskettes are inserted as many times as
necessary to copy the file.  When either of the prompts:
INSERT SOURCE DISK.  TYPE ANY KEY TO CONTINUE, ESCAPE TO ABORT:
INSERT DESTINATION DISK.  TYPE ANY KEY TO CONTINUE, ESCAPE TO ABORT:
is sent to the console device, the user must place the source or
destination diskette, as specified in the prompt, into the drive.  If
the user wishes to abort the command, the ESCape character (ASCII 1BH)
is entered from the console device at this time; otherwise, any other
character is entered.  The file is created on the destination diskette
with the same name and attributes that it has on the source diskette.
 
%COPYSD DATA.FILE
INSERT SOURCE DISK.  TYPE ANY KEY TO CONTINUE, ESCAPE TO ABORT:G
INSERT DESTINATION DISK.  TYPE ANY KEY TO CONTINUE, ESCAPE TO ABORT:G
%
       copies the file DATA.FILE from the source diskette to the
       destination diskette.
^^^^^0110
      DATE [yymmdd]

Displays and optionally sets the date field which is used as the date
of creation or date of last modification by the file system(s).  Digits
'yy' specify the year, 'mm' the month, and 'dd' the day.  The DATE
command is part of the standard RIO external initialization command file
OS.INIT.  Editing the file manually is required to change the date set
at system initialization.

      %DATE 780601
      JULY 1, 1978
       sets and displays current system date.
^^^^^0120
      DEACTIVATE device_name

Deletes device_name from the Active Device Table (ADT) and thus makes
it unknown to RIO.  A Close I/O request is generated for units linked
to the deactivated device and a Deactivate I/O request is generated for
the device itself.  If the ADT size entry is non-null ( >0), the space
allocated to the device handler is deallocated.  Deactivation is
inhibited for the last active device, since there would be no source
for further external commands and therefore no method to activate other
device files.  Likewise, the master device cannot be deactivated.

      %DEACTIVATE $MYDOS
       Removes MYDOS from Active Device Table and generates Close
       request for all units linked to MYDOS.  A Deactivate request is
       sent to MYDOS and the space allocated to it deallocated (if ADT
       size entry > 0).
^^^^^0130
      DEAllocate block_address block_size

Marks the block_size segment starting at block_address as unallocated
in the system memory map.  If any affected blocks were not previously
allocated, the message

      MEMORY PROTECT VIOLATION

is given.  Block_address will first be rounded down to an integral
multiple of 80H, and block_size will be rounded up to a multiple of 80H.

      %DEA 502F 13B5
       deallocates the 1400H (13B5H rounded up) block starting at
       address 5000H (502F rounded down).  This block must have been
       previously allocated.
^^^^^0140
      DEFINE (unit file_name|unit device name|unit *|*)+ [A|O|U|I|NF|
             NO]

Links a logical unit (referenced by an integer from 1 to 20) to a
currently active device or restores unit to the default established at
system initialization (bootstrap).  (Units 1, 2, 3 may be referenced by
the mnemonics CONIN, CONOUT, and SYSLST, respectively.)  If the unit
was previously defined, a Close request is generated.  A file name may
optionally be associated with the unit.  Assign and Open requests may
be generated for the unit.  See Chapters 6 and 7 of the RIO User's
Manual for ZDOS and DFS open types (default=U).

      %DEFINE 12 $YOUR.DOS/YOURFILE NO
       Links unit 12 to the device YOUR.DOS (which must be active).  An
       Assign I/O request is then generated with YOURFILE as the
       filename, but no Open request.
^^^^^0150
      DELETE (match_string|T=type|P=props|D=drive|Q=query|DATE^date|
              CDATE^date)*

Deallocates all records and deletes name from file directory of files
which match the specified options.  Given without option, all (non-
secret) files in each active unit are deleted.  Where options other
than match_strings are specified more than once, the last entered is
used.  As matches are made, a prompt is made of the form:
      DELETE drive/filename (Y/N/A/Q)?
One character is accepted as input and must be one of the following:
      'Y':   Yes, delete the named file.
      'N':   No, do not delete the named file.
      'A':   Yes, delete the named file and all other files without
             further query.
      'Q':   No, do not delete the named file and discontinue searching
             for file matches.
match_string:   See: HELP CAT
query:   'Q=N' suppresses queries
DATE^date and CDATE^date:   See: HELP CAT

      %DELETE D=2 P=R *.BASIC Q=N
       deletes without query all random files on drive 2 whose names
       end in '.BASIC'.
^^^^^0160
      DISK.FORMAT (S|D=drive|ID='disk_name'|Q=query)*
 
Formats a hard disk cartridge or hard disk fixed platter, initializes
the disk allocation map and utilization statistics.  A directory file
is established.  When a system disk is formatted, sectors are
preallocated for the bootstrap.

S:   System disk format is specified.  If there is not a system disk on
     drive 0, prompts will indicate the course of action.
ID='disk_name':   Up to 100 characters not including a carriage return
                  are used to identify the disk.  These are written on
                  the disk and used by DFS to determine the disk
                  allocation map validity.
Q=query:   'Q=N' suppresses 'READY?' query.
 
      %DISK.FORMAT D=5 S ID='RIO MCZ 1/35 SYSTEM DISK'
      READY?Y
       formats the hard disk in DFS drive 5 as a system disk.
^^^^^0170
          DISK.REPAIR level_number DFS_drive_number
Attempts to recover lost file data due to disk failure or abnormal disk
access interruption.  Three increasingly drastic levels of repair have
been implemented: Levels 1, 2, and C. The repair is attempted on the disk
in DFS drive DFS_drive_number.  If the Level 1 Repair command is effective 
in retrieving data, the message:
        n SECTORS REMOVED FROM FREE CHAIN                             
is sent to the console device, where n is the decimal number of sectors
the command retrieved from the free chain, restored to a file, and
marked as allocated.  If the disk appears to be undamaged, the message:
        FREE CHAIN UNMODIFIED
is displayed.  If the disk damage is beyond the repair capability of level 1, 
the message:    LEVEL 1 REPAIR NOT SUFFICIENT FOR THIS DRIVE    is displayed. 
      Level 2 repair reconstructs the free chain from scratch.  This is useful
for retrieving sectors that have been allocated, but are on the free chain and
not in the unallocated sector list.  Level 2 requires 7 minutes to run.
      Level C counts the number of free sectors and reports the count to the 
user.  When that number differs significantly from the number of free sectors
listed by a DISK.STATUS, it may be wise to perform a Level 2 repair.   
             %DISK.REPAIR L=1 D=3
              6 SECTORS REMOVED FROM FREE CHAIN    Level 1 repair is performed
on the disk in drive 3; 6 sectors are placed back into their proper files.
^^^^^0180
      DISK.STATUS [0|1...6|7]
 
Lists statistics on how much of the DFS disk on the specified drive has
been used and how much of it remains available for new files.  The
default lists statistics on all drives which are ready.  If there were
any unavailable sectors detected during formatting, the message
        n SECTORS UNAVAILABLE
will be sent to the console device, where n is the number of unusable
hard disk sectors.  In the event that the number of free and allocated
sectors do not sum up to the number of sectors on the disk, the message
        WARNING: DISK STATISTICS ARE INCONSISTENT
is printed.  If the number of unallocated sectors in the sector map is
not the same as the free sector count, the following message is printed:
        WARNING: ALLOCATION IS INCONSISTENT
These errors generally indicated reformatting of the disk.  However, it
may still be possible to read all files from the disk and avoid loss of
data.
 
      %DISK.STATUS 0
 
      DRIVE 0   RIO MCZ 1/35 SYSTEM DISK
      6638 SECTORS USED
      3105 SECTORS AVAILABLE
^^^^^0190
      DISPLAY

Displays the current state of the memory allocation map on the system
console.  The memory allocation display is a matrix with one horizontal
row for each 1000H bytes of memory.  The point corresponding to each
80H byte segment of memory is either marked with 'A' if the segment is
allocated, or '.' if it is free.
 
      %DISPLAY
       displays the current allocation of memory.
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⟦523170e4d⟧ TextFile

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