1  DUMP
   Displays the contents of a file, a directory, a disk volume, a
   magnetic tape volume, or a CD-ROM volume in decimal, hexadecimal,
   octal format, ASCII, or formatted data structures. This command
   can be used to generate process dumps.

   Format

     DUMP  filespec [,...]
 

2  Parameter
 

filespec [,...]

   Specifies the file or name of the device being dumped.

   If the specified device is not a disk, a tape, or a network
   device, or if the device is mounted with the /FOREIGN qualifier,
   the file specification must contain only the device name.

   If the specified device is a network device, a disk device, or a
   tape device that is mounted without the /FOREIGN qualifier, the
   file specification can contain the asterisk (*)  and the percent
   sign (%) wildcard characters.

   Files-11 C/D format standards have been implemented on mounted
   and foreign mounted volumes.
 

2  Qualifiers
 

/ALLOCATED

   Includes in the dump all blocks allocated to the file. (By
   default, the dump does not include blocks following the end-
   of-file [EOF].)

   You can specify the /ALLOCATED qualifier if the input is a disk
   that is mounted without the /FOREIGN qualifier. The /ALLOCATED
   and /RECORDS qualifiers are mutually exclusive.
 

/BLOCKS

      /BLOCKS[=(option[,...])]

   Dumps the specified blocks one block at a time, which is the
   default method for all devices except network devices.

   Block numbers are specified as integers relative to the beginning
   of the file. Typically, blocks are numbered beginning with 1.
   If a disk device is mounted using the /FOREIGN qualifier, blocks
   are numbered beginning with zero. Select a range of blocks to be
   dumped by specifying one of the following options:

   START:n    Specifies the number of the first block to be dumped;
              the default is the first block.

   END:n      Specifies the number of the last block to be dumped;
              the default is the last block or the end-of-file (EOF)
              block, depending on whether you have specified the
              /ALLOCATED qualifier.

   COUNT:n    Specifies the number of blocks to be dumped. The COUNT
              option provides an alternative to the END option; you
              cannot specify both.

   If you specify only one option, you can omit the parentheses.

   The /BLOCKS and /RECORDS qualifiers are mutually exclusive.

   Use the /BLOCKS qualifier to dump random blocks from Files-11
   volumes. This procedure requires LOG-IO (logical I/O) privilege.
 

/BYTE

   Formats the dump in bytes. The /BYTE, /LONGWORD, and /WORD
   qualifiers are mutually exclusive. The default format is composed
   of longwords.
 

/DECIMAL

   Dumps the file in decimal radix. The /DECIMAL, /HEXADECIMAL
   (default), and /OCTAL qualifiers are mutually exclusive.
 

/DESCRIPTOR

      /DESCRIPTOR[=(option[,...])]

   Dumps the specified ISO 9660 volume descriptors in a formatted
   manner. If /NOFORMATTED is specified, block mode format is used.

   The descriptor options that you can specify are as follows:

   BOOT:n     Searches for the nth occurrence of a Boot Record.

   PVD:n      Searches for the nth occurrence of a Primary Volume
              Descriptor.

   SVD:n      Searches for the nth occurrence of a Supplementary
              Volume Descriptor.

   VPD:n      Searches for the nth occurrence of a Volume Partition
              Descriptor.

   VDST:n     Searches for the nth occurrence of a Volume Descriptor
              Set Terminator.

   If you specify only one option, you can omit the parentheses.

   ISO 9660 descriptors are specified by their ordinal position
   from the start of the volume, defaulting to 1 if they are not
   specified. The ISO 9660 volume is sequentially searched from
   the beginning of the volume descriptor set sequence to the end
   to find the specified descriptor and output it in a formatted
   manner.
 

/DIRECTORY

   Dumps data blocks of the specified file as formatted on-disk
   structures for Files-11 On-Disk Structure Level 1, 2, or 5
   directory records, ISO 9660, or High Sierra directory records.
 

/EXACT

   Use with the /PAGE=SAVE and /SEARCH qualifiers to specify a
   search string that must match the search string exactly and must
   be enclosed with quotation marks (" ").

   If you specify the /EXACT qualifier without the /SEARCH
   qualifier, exact search mode is enabled when you set the search
   string with the Find (E1) key.
 

/FILE_HEADER

   Dumps each data block that is a valid Files-11 header in Files-
   11 header format rather than in the selected radix and length
   formats.
 

/FORMATTED

      /FORMATTED (default)
      /NOFORMATTED

   Dumps the file header in Files-11 format; the /NOFORMATTED
   qualifier dumps the file header in octal format. This qualifier
   is useful only when the /HEADER qualifier is specified.
 

/HEADER

   Dumps the file header and access control list (ACL). To dump
   only the file header, and not the file contents, also specify
   /BLOCK=(COUNT:0). The /HEADER qualifier is invalid for devices
   mounted using the /FOREIGN qualifier.

   Use the /FORMATTED qualifier to control the format of the
   display.

   You can use the /FILE_HEADER qualifier with the /HEADER
   qualifier to have Files-11 file headers printed in an interpreted
   representation.

   By default, the file header is not displayed.
 

/HEXADECIMAL

      /HEXADECIMAL (default)

   Dumps the file in hexadecimal radix. The /DECIMAL, /HEXADECIMAL
   (default), and /OCTAL qualifiers are mutually exclusive.
 

/HIGHLIGHT

      /HIGHLIGHT[=keyword]

   Use with the /PAGE=SAVE and /SEARCH qualifiers to specify the
   type of highlighting you want when a search string is found. When
   a string is found, the entire line is highlighted. You can use
   the following keywords: BOLD, BLINK, REVERSE, and UNDERLINE. BOLD
   is the default highlighting.
 

/IDENTIFIER

      /IDENTIFIER=file-id

   Dumps the file selected by the file identification (FID) number
   from the specified volume. For further information, see the
   /FILE_ID qualifier from the DCL command, DIRECTORY.
 

/LONGWORD

      /LONGWORD (default)

   Formats the dump in longwords. The /BYTE, /LONGWORD, and /WORD
   qualifiers are mutually exclusive.
 

/MEDIA_FORMAT

      /MEDIA_FORMAT=keyword

   Specifies the format in which a data structure is to be dumped.
   If you specify this qualifier, you must use one of the following
   keywords:

   CDROM          Specifies ISO 9660 media format. This format is
                  the default if you do not specify the /MEDIA_
                  FORMAT qualifier.

   CDROM_HS       Specifies High Sierra media format.
 

/NUMBER

      /NUMBER[=n]

   Specifies how byte offsets are assigned to the lines of output.
   If you specify the /NUMBER qualifier, the byte offsets increase
   continuously through the dump, beginning with n; if you omit the
   /NUMBER qualifier, the first byte offset is zero. By default, the
   byte offset is reset to zero at the beginning of each block or
   record.
 

/OCTAL

   Dumps the file in octal radix. The /DECIMAL, /HEXADECIMAL
   (default), and /OCTAL qualifiers are mutually exclusive.
 

/OUTPUT

      /OUTPUT[=filespec]

   Specifies the output file for the dump. If you do not specify
   a file specification, the default is the file name of the file
   being dumped and the file type .DMP. If the /OUTPUT qualifier
   is not specified, the dump goes to SYS$OUTPUT. The /OUTPUT and
   /PRINTER qualifiers are mutually exclusive.
 

/PAGE

      /PAGE[=keyword]
      /NOPAGE (default)

   Controls the display of dump information on the screen.

   You can use the following keywords with the /PAGE qualifier:

   CLEAR_SCREEN   Clears the screen before each page is displayed.

   SCROLL         Displays information one line at a time.

   SAVE[=n]       Enables screen navigation of information, where n
                  is the number of pages to store.

   The /PAGE=SAVE qualifier allows you to navigate through screens
   of information. The /PAGE=SAVE qualifier stores up to 5 screens
   of up to 255 columns of information. When you use the /PAGE=SAVE
   qualifier, you can use the following keys to navigate through the
   information:

   Key Sequence              Description

   Up arrow key, Ctrl/B      Scroll up one line.
   Down arrow key            Scroll down one line.
   Left arrow key            Scroll left one column.
   Right arrow key           Scroll right one column.
   Find (E1)                 Specify a string to find when the
                             information is displayed.
   Insert Here (E2)          Scroll right one half screen.
   Remove (E3)               Scroll left one half screen.
   Select (E4)               Toggle 80/132 column mode.
   Prev Screen (E5)          Get the previous page of information.
   Next Screen (E6),         Get the next page of information.
   Return, Enter, Space
   F10, Ctrl/Z               Exit. (Some utilities define these
                             differently.)
   Help (F15)                Display utility help text.
   Do (F16)                  Toggle the display to oldest/newest
                             page.
   Ctrl/W                    Refresh the display.

   The /PAGE qualifier is not compatible with the /OUTPUT qualifier.
 

/PATH_TABLE

   Dumps data blocks in ISO 9660 Path Table format.
 

/PRINTER

   Queues the dump to SYS$PRINT in a file named with the file name
   of the file being dumped and the file type .DMP. If the /PRINTER
   qualifier is not specified, the dump goes to SYS$OUTPUT. The
   asterisk (*)  and the percent sign (%) wildcard characters are
   not allowed. The /OUTPUT and /PRINTER qualifiers are mutually
   exclusive.
 

/PROCESS

   Attempts to generate a process dump.
 

/RECORDS

      /RECORDS[=(option[,...])]

   Dumps the file a record at a time rather than a block at a time.
   (By default, input is dumped one block at a time for all devices
   except network devices.)

   Records are numbered beginning with 1.

   Select a range of records to be dumped by specifying one of the
   following options:

   START:n    Specifies the number of the first record to be dumped;
              the default is the first record.

   END:n      Specifies the number of the last record to be dumped;
              the default is the last record of the file.

   COUNT:n    Specifies the number of records to be dumped. The COUNT
              option provides an alternative to the END option; you
              cannot specify both.

   If you specify only one option, you can omit the parentheses.

   If you specify the /RECORDS qualifier, you cannot specify the
   /ALLOCATED or the /BLOCKS qualifier.
 

/SEARCH

      /SEARCH="string"

   Use with the /PAGE=SAVE qualifier to specify a string that you
   want to find in the information being displayed. Quotation marks
   are required for the /SEARCH qualifier, if you include spaces in
   the text string.

   You can also dynamically change the search string by pressing the
   Find key (E1) while the information is being displayed. Quotation
   marks are not required for a dynamic search.
 

/STYLE

      /STYLE=keyword

   Specifies the file name format for display purposes while
   performing a file dump.

   The valid keywords for this qualifier are CONDENSED and EXPANDED.
   Descriptions are as follows:

   Keyword     Explanation

   CONDENSED   Displays the file name representation of what is
   (default)   generated to fit into a 255-length character string.
               This file name may contain a DID or FID abbreviation
               in the file specification.
   EXPANDED    Displays the file name representation of what is
               stored on disk. This file name does not contain any
               DID or FID abbreviations.

   The keywords CONDENSED and EXPANDED are mutually exclusive. This
   qualifier specifies which file name format is displayed in the
   output header.

   File errors are displayed with the CONDENSED file specification
   unless the EXPANDED keyword is specified.

   See the OpenVMS User's Manual for more information.
 

/SYMLINK

      /SYMLINK=keyword
      /NOSYMLINK (default)

   If an input file is a symbolic link, the file referred to by the
   symbolic link is the file that is dumped.

   The /SYMLINK qualifier indicates that any input symbolic link is
   dumped.
 

   The valid keywords for this qualifier are [NO]WILDCARD,
   [NO]ELLIPSIS, and [NO]TARGET. Descriptions are as follows:

   Keyword     Explanation

   NOWILDCARD  Indicates that symlinks are disabled during directory
               wildcard searches.
   WILDCARD    Indicates that symlinks are enabled during wildcard
               searches.
   NOELLIPSIS  Indicates that symlinks are matched for all wildcard
               fields except for ellipsis.
   ELLIPSIS    Equivalent to WILDCARD (included for command
               symmetry).
   TARGET      Indicates that if the target file of the file
               specification is a symlink, then the target file
               is followed.
   NOTARGET    Indicates that the command operates on the target
               file even if it is a symlink.

   If the file named in the DUMP command is a symlink, the command
   by default operates on the symlink target.
 

/VALIDATE_HEADER

   Verifies /DIRECTORY records for Files-11.
 

/WIDTH

      /WIDTH=n

   Formats the dump output into 80 or 132 columns by specifying n as
   either 80 or 132.
 

/WORD

   Formats the dump in words. The /BYTE, /LONGWORD, and /WORD
   qualifiers are mutually exclusive.
 

/WRAP

      /WRAP
      /NOWRAP (default)

   Use with the /PAGE=SAVE qualifier to limit the number of columns
   to the width of the screen and to wrap lines that extend beyond
   the width of the screen to the next line.

   The /NOWRAP qualifier extends lines beyond the width of the
   screen and can be seen when you use the scrolling (left and
   right) features provided by the /PAGE=SAVE qualifier.
 

2  Examples

   1.$ DUMP TEST.DAT
     Dump of file DISK0:[MOORE]TEST.DAT;1 on 14-DEC-2001 15:43:26.08
     File ID (3134,818,2)   End of file block 1 / Allocated 3
     Virtual block number 1 (00000001), 512 (0200) bytes
      706D6173 20612073 69207369 68540033 3.This is a samp 000000
      73752065 62206F74 20656C69 6620656C le file to be us 000010
      61786520 504D5544 2061206E 69206465 ed in a DUMP exa 000020
      00000000 00000000 0000002E 656C706D mple............ 000030
      00000000 00000000 00000000 00000000 ................ 000040
      00000000 00000000 00000000 00000000 ................ 000050
      00000000 00000000 00000000 00000000 ................ 000060
               .
               .
               .
      00000000 00000000 00000000 00000000 ................ 0001E0
      00000000 00000000 00000000 00000000 ................ 0001F0

     The DUMP command displays the contents of TEST.DAT both in
     hexadecimal longword format and in ASCII beginning with the
     first block in the file.

   2.$ DUMP TEST.DAT/OCTAL/BYTE
     Dump of file DISK0:[SCHELL]TEST.DAT;1 on 14-DEC-2001 15:45:33.58
     File ID (74931,2,1)   End of file block 1 / Allocated 3
     Virtual block number 1 (00000001), 512 (0200) bytes
      151 040 163 151 150 124 000 063 3.This i 000000
      160 155 141 163 040 141 040 163 s a samp 000010
      040 145 154 151 146 040 145 154 le file  000020
      163 165 040 145 142 040 157 164 to be us 000030
      040 141 040 156 151 040 144 145 ed in a  000040
      141 170 145 040 120 115 125 104 DUMP exa 000050
      377 377 000 056 145 154 160 155 mple.... 000060
      000 000 000 000 000 000 000 000 ........ 000070
      000 000 000 000 000 000 000 000 ........ 000100
      000 000 000 000 000 000 000 000 ........ 000110
               .
               .
               .
      000 000 000 000 000 000 000 000 ........ 000760
      000 000 000 000 000 000 000 000 ........ 000770

     The DUMP command displays the image of the file TEST.DAT,
     formatted both in octal bytes and in ASCII characters beginning
     with the first block.

   3.$ DUMP NODE3::DISK2:[STATISTICS]RUN1.DAT

     This command line dumps the file RUN1.DAT that is located at
     remote node NODE3. The default DUMP format will be used.

   4.$ DUMP/HEADER/BLOCK=COUNT=0 SYS$SYSTEM:DATASHARE.EXE

     Dump of file SYS$SYSTEM:DATASHARE.EXE on  12-NOV-2001 16:06:46.75
     File ID (16706,59,0)   End of file block 410 / Allocated 411

                                  File Header

     Header area
         Identification area offset:           40
         Map area offset:                      100
         Access control area offset:           255
         Reserved area offset:                 255
         Extension segment number:             0
         Structure level and version:          2, 1
         File identification:                  (16706,59,0)
         Extension file identification:        (0,0,0)
         VAX RMS attributes
             Record type:                      Fixed
             File organization:                Sequential
             Record attributes:                <none specified>
             Record size:                      512
             Highest block:                    411
             End of file block:                410
             End of file byte:                 414
             Bucket size:                      0
             Fixed control area size:          0
             Maximum record size:              512
             Default extension size:           0
             Global buffer count:              0
             Directory version limit:          0
         File characteristics:                 Contiguous best try
         Caching attribute:                    Writethrough
         Map area words in use:                3
         Access mode:                          0
         File owner UIC:                       [1,4]
         File protection:                      S:RWED, O:RWED, G:RE, W:
         Back link file identification:        (7149,80,0)
         Journal control flags:                <none specified>
         Active recovery units:                None
         Highest block written:                411
         Client attributes:                    None

     Identification area
         File name:                            DATASHARE.EXE
         Revision number:                      1
         Creation date:                        12-AUG-2001 14:06:49.84
         Revision date:                        12-AUG-2001 14:06:53.20
         Expiration date:                      <none specified>
         Backup date:                          <none specified>

     Map area
         Retrieval pointers
             Count:        411        LBN:    1297155

     Checksum:                                 30710

     In this example, the DUMP command dumps the file header of the
     specified file. Because this file is recorded on Files-11 ODS-2
     9660 media, the file header is displayed in a Files-11 File
     Header format. Imbedded on the Files-11 Header is a VAX RMS
     attributes block.

   5.$ DUMP/HEADER/BLOCK=COUNT=0 DISK$GRIPS_2:[000000]AAREADME.TXT;
     Dump of file DISK$GRIPS_2:[000000]AAREADME.TXT;1 on 15-DEC-2001
     10:07:29.70

        File ID (4,6,0)   End of file block 29 / Allocated 29

                                 ISO 9660 File Header

        Length of Directory Record:              48
        Extended Attribute Length:               1
        Location of Extent (LSB/MSB):            312/312
        Data Length of File Section (LSB/MSB):   14640/14640
        Recording Date and Time                  10-DEC-2001 16:22:30 GMT(0)
        File Flags                               RECORD, PROTECTION
        Interleave File Unit size:               0
        Interleave Gap size:                     0
        Volume Sequence # of extent (LSB/MSB):   1/1
        File Identifier Field Length:            14
        File Identifier:                         AAREADME.TXT;1
        System Use
     5458542E 454D4441 45524141 0E010000 01000018 001E1610 100B5930 39000000
     ...90Y..............AAREADME.TXT 000000
                                                                      00313B
     ;1.............................. 000020

     Extended Attribute record
        Owner Identification (LSB/MSB):        7/7
        Group Identification (LSB/MSB):        246/246
        Access permission for classes of users S:R, O:R, G:RE, W:RE
        File Creation Date/Time:               5-OCT-2001 14:17:49.29 GMT(0)
        File Modification Date/Time:           6-NOV-2001 16:22:30.96 GMT(0)
        File Expiration Date/Time:             00-00-0000 00:00:00.00 GMT(0)
        File Effective Date/Time:              00-00-0000 00:00:00.00 GMT(0)
        Record Format                          Fixed
        Record Attributes                      CRLF
        Record Length (LSB/MSB):               80/80
        System Identifier:
        System Use
        Extended Attribute Version:            1
        Escape Sequence record length:         0
        Application Use Length (LSB/MSB):      0/0
        Application Use

        VAX RMS attributes
            Record type:                      Fixed
            File organization:                Sequential
            Record attributes:                Implied carriage control
            Record size:                      80
            Highest block:                    29
            End of file block:                29
            End of file byte:                 304
            Bucket size:                      0
            Fixed control area size:          0
            Maximum record size:              80
            Default extension size:           0
            Global buffer count:              0
            Directory version limit:          0

     The DUMP/HEADER command dumps the file header of the specified
     file. Because this file is recorded on ISO 9660 media, the file
     header is displayed in the format of an ISO 9660 File Header
     and, since this file contains an optional ISO 9660 Extended
     Attribute Record (XAR), it is also displayed. Finally, as with
     all DUMP/HEADER requests, VAX RMS attributes are displayed.
 

