The SHOW HISTORY command lists information about CMS library
    transactions. CMS records all transactions that update the
    library. The following transactions are not logged in the library
    history:

    ANNOTATE               SET LIBRARY
    DIFFERENCES            SHOW commands
    FETCH (no remark)      VERIFY (no qualifiers)
    RETRIEVE ARCHIVE

    The SHOW HISTORY command displays a chronological list of
    transactions. The transaction records are displayed in the
    following format:

    date time username command remark

    A space separates each item in the transaction record. Each item
    is explained below.

 date

    Displays the date the command was issued, in the following
    format:

    [d]d-mmm-yyyy

    For example:

      9-JUN-1988

 time

    Displays the time the command was issued, in the following
    format:

    hh:mm:ss

    For example:

      17:12:12
      09:02:33

 username

    Displays the user name of the person who issued the command.

 command

    Identifies the command that was issued. The string "CMS" does
    not appear as part of the command. The command name, option
    name (if any), and any parameters are displayed. If the command
    operates on a particular generation of an element, the element
    name is followed by the generation number enclosed in parentheses;
    for example, SEMANTICS.PAS(3). Qualifiers that indicate some
    modification of the library are logged; for example, the /NAME
    qualifier with a MODIFY command.

 remark

    Specifies a character string that was logged in the history file
    with this command, usually used to explain why the command was
    entered. The remark is enclosed in quotation marks. If no remark
    was entered, a null remark ("") is displayed.

    The following is an example of one transaction record:

 11-AUG-1988 11:54:15 TAYLOR REPLACE SYNTAX.PAS(3) "RECORD and FOR
 loop syntax compatible"

    This record shows that on August 11, 1988, at 11:54, user TAYLOR
    issued the REPLACE command on SYNTAX.PAS, which created generation
    3.

    For any command that caused an unusual occurrence, CMS displays an
    asterisk in the first column.

    Note that because transaction records for elements, groups, or
    classes deleted from a library are retained (see DELETE ELEMENT,
    DELETE GROUP, and DELETE CLASS), SHOW HISTORY can display records
    for elements and classes that do not currently exist. If a deleted
    name is reused, SHOW HISTORY does not distinguish between the old
    and the new histories.