JPH0240740A - File update system - Google Patents

Abstract

PURPOSE:To reduce overflow occurrence and to improve file update efficiency by deleting overlap files between a 1st and 2nd external storage devices from the 1st external storage device and copying files in the 2nd external storage means to the 1st storage means. CONSTITUTION:The names of files stored on a master disk 1 as the 1st storage means and a transaction disk 2 as the 2nd storage means are read out by the file name read means 51 of an input/output processing part 5, passed through a file name sorting means 52, and compared by a file name comparing means 53. When the file names match each other, a file deletion means 54 deletes the file on the master disk 1 and the contents of the master disk 1 where a free area is formed are updated. Further, the master disk 1 is restored to its original state by the transaction 2 and the file copying means 55 of the processing part 5. This constitution reduces the overflow occurrence of the master disk and increases the file update efficiency.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a file update method, and more particularly to a file update method for updating files stored in external storage means in a computer system.

[Conventional technology]

Since a software system in a personal computer etc. is composed of multiple programs, for example, as shown in Figure 3, program files stored on multiple transaction floppy disks (hereinafter simply referred to as transactions) can be sequentially merged. then 1
They are now shipped together on one or several master floppy disks (hereinafter simply referred to as masks).

Furthermore, conventionally, when a part of the program of a software system is updated after a mask has been created, the mask has been updated by the procedure shown in FIG. 4, for example. That is, first, the contents of the directory of the old transaction (list of file names) and the contents of the directory of the new transaction (list of file names) are printed out, and the worker compares the file names on the desk (step 41) 0Next, if there is a file with a file name that is in the old transaction but not in the new transaction (step 42), the file that is no longer needed will exist in the mask, so delete the corresponding file from the mask. (step 43), and then copies the new transaction file to the mask (step 4).
4) If it is not possible to copy all the files of the new transaction to the mask (step 45), delete the duplicate files from the mask (step 46),
Repeat copying of the new transaction files to the mask (step 44), and if all new transaction files have been copied to the mask, confirm this (step 47), then complete the mask update process. .

[Problem to be solved by the invention]

In the conventional file update method described above, when copying a file from a new transaction to a mask, the old file is left in the mask, a new file is created in another area (temporary file) of the mask, and then the old file is copied to the mask. Since the method of deleting files was used, there was a drawback that overflow could occur due to temporary files when a new transaction was copied to the mask.

In particular, since the mask is a collection of multiple transactions, it can be said that there is almost no free space.
For example, if the mask is updated once a month due to a program version update, overflow occurs each time and it is not possible to copy all files, so duplicate file names must be manually removed from the mask. It became necessary to perform recovery processing such as deleting the transaction in advance and then copying the new transaction to the mask.

In view of the above-mentioned points, it is an object of the present invention to automatically delete duplicate files between first and second external storage means from the first external storage means and then delete them from the second external storage means. By copying the file to the first external storage means,
It is an object of the present invention to provide a file update method in which a temporary file is not created when a file in a second external storage means is copied to a first external storage means, and there is less risk of overflow occurring.

[Means to solve the problem]

The file update method of the present invention includes updating a file having the same file name as a plurality of files stored in the second external storage means among the plurality of files stored in the first external storage means into the second external storage means. In a file update method for updating files stored in an external storage means, a file name reading means reads file names of files stored from the first and second external storage means; a data storage section for temporarily storing file names stored in the data storage section; a file name sorting means for sorting the file names stored in the data storage section according to the first and second external storage means; a file name comparing means for comparing and collating the file names sorted by the sorting means and stored on the data storage section with the file names of the files in the first and second external storage means; file deletion means for deleting a file with a matching file name from the first external storage means; and after the file deletion means deletes the file from the first external storage means, the file is deleted from the second external storage means. and file copying means for copying files to the first external storage means.

[Effect]

In the file update method of the present invention, the file name reading means reads the file names of the files stored from the first and second external storage means, and the data storage section temporarily stores the file names read by the file name reading means. The file name sorting means sorts the file names stored in the data storage section for each of the first and second external storage means, and the file name comparison means sorts the file names stored in the data storage section by the file name sorting means. The file names stored above are compared and matched between the file names of the files in the first and second external storage means, and the file deletion means uses the file name comparison means to transfer the files with matching file names to the first external storage. The file copying means copies the file from the second external storage means to the first external storage means after the file is deleted from the first external storage means by the file deletion means.

〔Example〕

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

FIG. 1 is a block diagram showing the configuration of a file update method according to an embodiment of the present invention. Its main parts are composed of a transaction means 2, a keyboard 3, an instruction section 4, an input/output processing section 5, and a data storage section 6.

Master 1 stores a plurality of files before update.

Transaction 2 stores a plurality of files before and after update, which are some of the plurality of files stored in master 1 .

The keyboard 3 is used by an operator to input the drive number of a floppy disk drive (not shown) into which the master 1 and transaction 2 are loaded to start file update processing.

The instruction section 4 assumes the drive number of the floppy disk drive into which the master 1 and transaction 2 input from the keyboard 3 are loaded, and starts the input/output processing section 5.

The input/output processing section 5 includes a file name reading means 51, a file name sorting means 52, a file name comparing means 53,
It is configured to include a file deletion means 54 and a file copying means 55.

The data storage unit 6 is a buffer that temporarily stores file names.

Referring to FIG. 2, the processing in the file update method of this embodiment includes a drive number input step 21, a file name reading step 22, a file name sorting step 23, a file name comparison and verification step 24, and a duplicate file identification step 21. It consists of a step 25 of deleting from the mask and a step 26 of copying the transaction to the mask.

Next, the operation of the file update method of this embodiment configured as described above will be explained.

When the drive number of the floppy disk drive into which master 1 and transaction 2 are loaded is input from the keyboard 3, the instruction section 4 checks the drive number input from the keyboard 3, and if it is correct, specifies these drive numbers and inputs the data. The output processing unit 5 is activated (step 21).

When the input/output processing unit 5 is activated, the file name reading unit 51 reads the file name from the master 1 and transaction 2 directories loaded in the floppy disk drive with the specified drive number, and stores the file name on the data storage unit 6. It is temporarily stored (step 22).

Next, the file name sorting means 52 sorts the file names stored on the data storage unit 6 in alphabetical order for each mask 1 and transaction 2 (step 23).

Subsequently, the file name comparing means 53 sequentially compares and collates the file names sorted on the data storage unit 6 between the master 1 and the transaction 2 from the beginning (step 2).
4).

Next, the file deletion means 54 deletes the file name comparison means 5.
Delete files with matching file names (duplicate files) from master 1 as a result of comparison in step 3 (step 25)
.

Subsequently, the file copying means 55 deletes the file from the file deletion means 5.
After the deletion of duplicate files from master 1 by transaction 4 is completed, the files of transaction 2 are sequentially copied to master 1 (step 26).

When the copying of all files of transaction 2 to master 1 is completed, the processing of the file update method of this embodiment ends.

Next, the operation of the file update method of this embodiment will be explained in more detail with reference to FIG. 5 (al to tel).

Suppose that the file name of the file stored in master 1 is as shown in Figure 5ial, for example, and that the file name of the file stored in transaction 2 is as shown in Figure 5, for example. do.

These file names are read into the data storage section 6 by the file name reading means 51, and the file name sorting means 52
Change the file name to Master 1 and Transaction 2
When sorted in alphabetical order, the results are as shown in FIG. 5, tc+ and +dl.

Next, the file comparing means 53 compares the first file name in FIG. 5 (C1) with the first file name in FIG. 5 (dl). If the two file names do not match,
FIG. 5 (C1 is checked as the second file name, third file name, etc. until they match, and if they match, the file name is notified to the file deletion means 54, and the file deletion means The file with the file name notified by 54 is deleted from master 1.The above process is repeated until the end of the file name for both TCI and (d) in FIG. 5.As a result, after the deletion is completed, the file name of master 1 is It becomes as shown in FIG. 5 (tel).

Therefore, even if transaction 2, which stores a file with the file name shown in Figure 5 fdl, is copied to master l, which stores a file with the file name shown in Figure 5 te+, a temporary file will not be created. , the possibility that master 1 overflow will occur is reduced.

In the above embodiment, the first and second external storage means are floppy disks.
It goes without saying that the present invention is equally applicable even if one or both of these are other external storage means such as a hard disk or magnetic tape.

〔Effect of the invention〕

As explained above, the present invention automatically deletes duplicate files between first and second external storage means from the first external storage means and then transfers files from the second external storage means to the first external storage means. By copying to external storage means,
Since a temporary file is not created when a file is copied, there is less risk of the first external storage means overflowing, and file updates can be performed efficiently.

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing the configuration of a file update method according to an embodiment of the present invention, Fig. 2 is a flow chart showing the processing in the file update method of this embodiment, and Fig. 3 shows the process of creating a mask from a transaction. Figure 4 is a flowchart illustrating an example of a conventional file update method; Figure 5 (al is a diagram illustrating the file name of the mask in Figure 1; Figure 5 (el is a diagram illustrating the file name of the mask after sorting, Figure 5 (d) is a diagram illustrating the file name of the transaction after sorting, Figure 5 (el) is a diagram illustrating the file name of the transaction after sorting, el is a diagram illustrating file names of masks after deletion. In the diagram, 1...mask, 2...transaction, 3...keyboard, 4...instruction section, 5...input/output Processing unit, 6... Data storage unit, 51, 52, 53, 54, 55, ・File name reading means, ・File name sorting means, ・File name comparison means, ・File deletion means, ・File copying means. .

Claims (1)

[Claims] A file having the same file name as a plurality of files stored in a second external storage means among the plurality of files stored in the first external storage means is stored in the second external storage means. In the file update method of updating with a file stored in the means, the file name reading means reads the file name of the file stored from the first and second external storage means, and the file name reading means read by the file name reading means a data storage section for temporarily storing file names; a file name sorting means for sorting the file names stored in the data storage section for each of the first and second external storage means; and the file name sorting means. a file name comparing means for comparing and collating the file names sorted by and stored on the data storage unit with the file names of the files in the first and second external storage means; file deletion means for deleting a file with a matching file from the first external storage means; and after the file deletion means deletes the file from the first external storage means, from the second external storage means the first and file copying means for copying a file to an external storage means.