JPH03282745A - File distribution system - Google Patents

Abstract

PURPOSE:To automatically transact updated files, to save the operation of a controller of a system and to hold the updated conditions of the files on respective computer systems in the latest state by comparing the final update time of the files. CONSTITUTION:When there is a remote request command from a client computer 1, a server computer 2 takes out information on the prescribed file from an update information data base where the updated conditions of the files are recorded and transfers it to the client computer 1. The client computer 1 detects the prescribed file on the self computer from said information and compares the final update time of the self file with the final update time of the file on the server computer 2. When the file on the client computer 1 is judged that it is not the latest one, the file is updated based on an update procedure from the server computer. Thus, the updated file can automatically be distributed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a file distribution method for distributing update files between a plurality of computer systems connected via a communication path.

[Conventional technology]

Conventionally, updated files have been distributed by the administrator of each computer system receiving a notification from the distribution source.

[Problem to be solved by the invention]

However, with this conventional method, update notifications do not reach the administrator of each computer system, or the notifications are not reflected at the discretion of the administrator, making it difficult to match the old and new files on each system. The disadvantage was that it was difficult to maintain

The present invention has improved on these conventional drawbacks, and its purpose is to eliminate the need for system administrator operations and to ensure that the update status of files on each computer system is kept up to date. The purpose is to provide a file distribution method.

[Means to solve the problem]

The file distribution method of the present invention includes a server computer and a client computer that are connected via a communication path, and the server computer records file update status based on a remote command execution request from the client computer. database file reading and transferring means for extracting information regarding a predetermined file from an update information database file and transferring it to a client computer; date reading and transferring means for reading and transferring the last update time of a file on its own computer to the client computer; update procedure transfer means for transferring the contents of the update procedure description file to the client computer; date reading means for determining a predetermined file on the own computer from the information and reading the last updated time of the file; and a date reading means for reading the last updated time of the file on the own computer read by the date reading means and transferring it from the date reading transfer means. A comparison means for comparing the last updated time of the file on the server computer, and an update procedure description file transferred from the server computer when it is determined that the file on the client computer is not the latest one as a result of the comparison. and update procedure execution means for carrying out file update processing based on the contents of the file.

[For production]

When the server computer receives a remote request command from the client computer, the server computer retrieves information regarding a predetermined file from an update information database in which the update status of the file is recorded, and transfers it to the client computer. The client computer uses this information to identify a predetermined file on its own computer. After the last modified time of the file on the server computer is transferred, the client computer compares the last modified time of the file on the client computer with the last modified time of the file on the server computer to ensure that the file on the client computer is the most recent. If it is determined that the file is not the original one, this file is updated based on the update procedure from the server computer. In this way, update files can be automatically distributed.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram of an embodiment of the present invention. In this embodiment, a client computer 1 and a server computer 2 are connected via a communication path 30. As shown in FIG.

In FIG. 1, the server computer 2 includes a remote execution request processing means 22 that processes remote command execution requests from the client computer 1, an update information database file 26 that records the update status of files, and an update information database file 26 that processes remote command execution requests from the client computer 1. A database reading means 23 that retrieves necessary information, a date reading means 24 that reads the last update time of an updated file 27 on the own computer 1, and a remote file transfer means 2 that processes remote file transfer requests from the client computer 1.
5, and communication means 21 for communicating with the client computer 1.

The client computer 1 also includes an update execution management means 14 that manages the execution of update processing, a remote database reading means 15 that issues a request to start the database file reading means 23 on the server computer 2, and obtains update information; An update information filter means 16 for extracting only information regarding files already existing in the own computer 1 from among the read update information; a date reading means 18 for reading the last update time of the updated file 1b on the own computer 1; A date comparison means 17 that compares the last update time of the updated file 27 on the server computer 2 with the last update time of the updated file 1b on the own computer 1, and transfer of the update procedure description file 28 on the server computer 2. A remote update procedure file reading means 19 that requests and receives the request, and an update procedure description file 28
an update procedure execution means 1a that executes update processing based on the contents of the update procedure execution means 1a, a scheduled startup processing means 11 that starts the update execution management means 14 at a scheduled time, and a system startup wait startup that starts the update execution management means 14 at system startup. Processing means 1
2, and an interactive activation processing means 13 by which the user of the client computer 1 interactively activates the update execution management means 14.
and a communication means IC for communicating with the server computer 2.
It is equipped with

Next, the file distribution processing operation in such a configuration will be explained. First, it is decided in advance which of the two computers will be the server and which will be the client.

When updating and distributing a file using computer 1 as a client and computer 2 as a server as shown in FIG. An update procedure description file 28 is created that describes the procedure for storing the file on the client computer 1, and a history of file updates is entered in the update information database file 26.

In the client computer l, scheduled startup processing means 1
1, at the system start-up by the system start-up wait processing means 12, or at the time of a system administrator's instruction by the dialogue start-up processing means 13,
The update execution management means 14 is started and the updated file 2
7 and starts its transfer.

The update execution management means 14 first activates the remote database reading means 15 and requests the remote execution request processing means 22 on the server computer 2 to transfer the contents of the update information database file 26. The remote execution request processing means 22 uses the database file reading means 23 to read the contents of the update information data file 26 and transfers the contents to the remote database reading means 15.

FIG. 2 shows the format of the update information database file 26, in which one - line indicates update information for one file.

In addition, recent update information is stored near the beginning of the database, and is managed so that multiple lines of information regarding the same file do not exist.

For each entry of the obtained update information, the update execution management means 14 uses the update information filter means 16 to extract only information about the updated file 1b that already exists on the own computer 1. Thereby, the date comparing means 17 compares the updated file 1b on the own computer 1 with the updated file 27 on the server computer.

That is, the date comparing means 17 reads the updated file 1b on its own computer 1 through the date reading means 18, and the updated file 27 on the server computer 2 from the date reading means 24 through the remote execution request processing means 22. to obtain the date and time of each last modification.

If the updated file 1b is older than the updated file 27, the update execution management means 14 issues a request through the remote update procedure file reading means 19, and the remote execution request processing means 2
The update procedure description file 28 is read by the remote file transfer means 25 via 2.

The contents of the read update procedure are executed by the update procedure execution means 1a, and the updated file is transferred and stored in the client computer 1. When the updated file 27 is stored according to this procedure, even if the update execution management means 14 is started next, the date of the file will already be the latest, so the date comparison means 17 will judge it as old. There is no
The transfer process will not be performed again.

Through the above processing, the file 27 updated on the server computer 2 can be automatically distributed to the client computer 1, and the update status of the file on each computer 1 and 2 can be maintained in the latest state. can be done. In the above-described embodiment, the case where there is one client computer 1 has been described, but a plurality of client computers may be provided, and in this case, the same functions as described above are performed.

〔Effect of the invention〕

As explained above, according to the present invention, a client computer can automatically receive updated files from a server computer at an appropriate timing, thereby saving the system administrator's operations and updating each computer system. This has the effect of keeping the update status of files up to date.

1

[Brief explanation of drawings]

FIG. 1 is a program diagram of an embodiment of the present invention, and FIG. 2 is a diagram showing an example of the format of an update information database file. In FIG. 1, 1... Client computer, Futaba server computer, 11... Scheduled start processing means, 12... System startup waiting start processing means, 13... Dialogue start processing means, 14... Update execution management means, 15... Remote database reading means, 16... Update information filtering means, 1
7...Date comparison means, 18...Date reading means, 19
...Remote update procedure file reading means, la...Update procedure execution means, IC...Communication means, 1b...Updated file, 21...Communication means, 22...Remote execution request processing means , 23... Database file reading means, 24... Date reading means, 25... Remote file transfer means, 26... Update information database file, 2
7... Updated file, 28... Update procedure description file.

Claims (1)

[Claims] It has a server computer and a client computer connected via a communication path, and the server computer retrieves a predetermined file from an update information database file in which file update status is recorded based on a remote command execution request from the client computer. A database file reading/transfer means reads and transfers information about files to the client computer; a date reading/transfer means reads the last updated time of a file on its own computer and transfers it to the client computer; update procedure transfer means for transferring the update procedure to the computer; date reading means for indexing a file and reading the last update time of the file; the last update time of the file on the own computer read by the date reading means; and the file on the server computer transferred from the date reading transfer means. A comparison means for comparing the last update time of the file, and updating the file based on the contents of the update procedure description file transferred from the server computer when it is determined that the file on the client computer is not the latest as a result of the comparison. A file distribution method comprising: update procedure execution means for executing processing.