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Checksum Generator - CHKSUM
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Time to upgrade? Click to see the current version number.
Checksum Generator (CHKSUM) guarantees you are using the right version of a test program. The program reads the data in a disk resident file and produces a unique four (4) digit identification number (CHKSUM) for that test file. You can even configure your test software to automatically stop if the checksum value changes, indicating that the wrong version of a test program has been accessed.
Each time you execute CHKSUM, it assigns a number to a selected test file. The checksum for a file changes if you change, delete, or add characters, instructions, etc. Use CHKSUM first on a completed test program to produce the master checksum value. CHKSUM applies a formula to each byte of data in a file. The result is a checksum value that is unique to the sequential order, number of bytes, and byte value in the file.
At a later date, or each time you run a test, you can run CHKSUM to verify you are using the right version. Compare this number with the original number to make sure you do not use a modified test program. You can also automatically capture the checksum to your error log each time you execute your test program. Just use the file directive CKS at the beginning of your error log. CHKSUM is invaluable for ensuring all staff use only the approved version of a test program. |
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