VMS Help CMS, SHOW, HISTORY *Conan The Librarian (sorry for the slow response - running on an old VAX) |
Displays a chronological list of transactions performed on a CMS library. You can limit the number of transactions that are displayed by specifying different parameters and qualifiers on the command. Format: SHOW HISTORY [object-expression]
1 - Command Parameters |
object-expression Specifies an object about which history information is to be displayed. The object expression can be one or more class names, element names, group names, a wildcard expression, or a list of any of these, separated by commas. If you do not specify an object expression, CMS lists all classes, elements, and groups in the library.
2 - Description |
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.
3 - Qualifiers |
3.1 - /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$OUTPUT.
3.2 - /BEFORE=date-time
Lists all history information prior to a specified date. By default, the time is the current date and time. The time value can be an absolute, delta, or combination time value, or one of the following keywords: TODAY, TOMORROW, or YESTERDAY.
3.3 - /OCCLUDE[=option,...]
Controls whether CMS selects the first instance of the specified object, or all instances of the specified object in the library search list. The options field contains one or more keywords associated with the name of the object. The options field can contain the following keywords: ALL--equivalent to OTHER OTHER (D) NOOTHER NONE--equivalent to NOOTHER You can specify either ALL, NONE, or the [NO]OTHER keyword. By default, CMS performs occlusion for all objects; that is, CMS selects only the first occurrence of a specified object.
3.4 - /OUTPUT[=file-specification]
Directs CMS to write output to the specified file, except for any warning and error messages, which are written to SYS$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.
3.5 - /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.
3.6 - /TRANSACTIONS=(keyword,...)
3.7 - /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.
3.8 - /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
3.9 - /USER=username
Lists the transactions executed by the specified user.
4 - Example |
CMS> SHOW HISTORY History of CMS Library DISKX:[PROJECTLIB] 15-JAN-1988 08:45:15 SNOW CREATE LIBRARY [PROJECTLIB] "code library" 25-JAN-1988 10:23:42 SNOW CREATE ELEMENT STRING.LIB(1) "string defs" 25-JAN-1988 13:37:57 SCHULTZ CREATE ELEMENT SIGNAL.LIB(1) "signaling defs" 25-JAN-1988 14:09:37 PADDOCK CREATE ELEMENT CONVRT.BLI(1) "gen conversion util" 26-JAN-1988 13:59:16 PADDOCK DELETE ELEMENT CONVRT.BLI "wrong format" 27-JAN-1988 10:51:05 PADDOCK CREATE ELEMENT CNVNUM.BLI(1) "conversion routines" 10-FEB-1988 10:51:48 SNOW CREATE ELEMENT SYSUTL.BLI(1) "general utilities" 21-FEB-1988 11:11:55 SNOW RESERVE STRING.LIB(1) "change definitions" 23-FEB-1988 11:22:31 SNOW REPLACE STRING.LIB(2) "added characters" 23-FEB-1988 11:23:41 PADDOCK RESERVE CNVNUM.BLI(1) "change constant values" 23-FEB-1988 12:15:21 SNOW FETCH STRING.LIB(1) "check differences" 23-FEB-1988 12:20:42 PADDOCK REPLACE CNVNUM.BLI(2) "constant values changed" . . . This command shows part of the early history of a library.
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