1    /APPEND

    Controls whether CMS appends the command output to an existing
    file, or creates a new file. If you specify /APPEND and the output
    file does not exist, CMS creates a new file. If you do not provide
    an output file specification (see the description for /OUTPUT),
    the output is appended to SYS$OUTPUT.

2    /BEFORE=date-time

    Lists all history information prior to a specified date. By
    default, the time is the current date and time. The time value
    can be an absolute, delta, or combination time value, or one of
    the following keywords: TODAY, TOMORROW, or YESTERDAY.

3    /OCCLUDE[=option,...]

    Controls whether CMS selects the first instance of the specified
    object, or all instances of the specified object in the library
    search list. The options field contains one or more keywords
    associated with the name of the object. The options field can
    contain the following keywords:

       ALL--equivalent to OTHER
       OTHER (D)
       NOOTHER
       NONE--equivalent to NOOTHER

    You can specify either ALL, NONE, or the [NO]OTHER keyword.

    By default, CMS performs occlusion for all objects; that is, CMS
    selects only the first occurrence of a specified object.

4    /OUTPUT[=file-specification]

    Directs CMS to write output to the specified file, except for any
    warning and error messages, which are written to SYS$OUTPUT and
    SYS$ERROR. CMS creates a new file if you do not specify /APPEND.
    If you omit the /OUTPUT qualifier (or if you specify /OUTPUT
    but do not provide a file specification), CMS directs output to
    the default output device (SYS$OUTPUT). If you omit either the
    file name or the file type component, CMS supplies the missing
    component from the default specification.

5    /SINCE=date-time

    Specifies that only those history entries dated on or after the
    given time are to be displayed. The time value can be an absolute,
    delta, or combination time value, or one of the following
    keywords: TODAY, TOMORROW, or YESTERDAY. When the /SINCE qualifier
    is omitted, all transactions that occurred since the library was
    created are displayed. If you specify the /SINCE qualifier but do
    not specify a value, CMS defaults to /SINCE=TODAY.

6    /TRANSACTIONS=(keyword,...)

7    /NOTRANSACTIONS=(keyword,...)

    Displays all transaction records generated by a specific command.
    You can specify the following keywords with this qualifier:

    ACCEPT   FETCH     REMOVE
    ALL      INSERT    REPLACE
    CANCEL   MARK      RESERVE
    COPY     MODIFY    REVIEW
    CREATE   REJECT    SET
    DELETE   REMARK    UNRESERVE
                       VERIFY

    If you specify more than one keyword, you must enclose the keyword
    list in parentheses. The /TRANSACTIONS qualifier directs CMS
    to list transaction records for only the listed keywords. The
    /NOTRANSACTIONS qualifier directs CMS to list transaction records
    for all keywords except the listed keywords.

8    /UNUSUAL

    Controls whether transactions recorded as unusual occurrences
    are displayed. If you specify /UNUSUAL, only unusual transactions
    are displayed. By default, /NOUNUSUAL displays all transactions,
    including unusual occurrences. The following CMS transactions are
    defined as unusual occurrences:

    o  A RESERVE command specifying an element that is already
       reserved
    o  A concurrent replacement
    o  A VERIFY/RECOVER command
    o  A VERIFY/REPAIR command
    o  A CONVERT LIBRARY command
    o  A REMARK/UNUSUAL command

9    /USER=username

    Lists the transactions executed by the specified user.