What is the best way to calculate a checksum for a file that is on my machine?

Question

I\'m on a Windows machine and I want to run a checksum on the MySQL distribution I just got. It looks like there are products to download, an unsupported Microsoft tool, an

Answer 1

Best utility for Windows is HashCheck that is now on GitHub. https://github.com/gurnec/HashCheck/releases/tag/v2.4.0

Install HashCheck. Now right click on the file -> Create verification file. It will create a file.extension.md5 file with MD5 code in it.

Love it.

Answer 2

Note that the above solutions will not tell you if your installation is correct only if your install.exe is correct (you can trust it to produce a correct install.)

You would need MD5 sums for each file/folder to test if the installed code has been messed with after the install completed.

WinMerg is useful to compare two installs (on two different machines perhaps) to see if one has been changed or why one is broken.

Answer 3

In HPUX ( hp UNIX)

Please install the md5sum package on your UNIX machine for example, if there is a file called a.txt

shell > md5sum a.txt

Answer 4

On Windows : you can use FCIV utility : http://support.microsoft.com/kb/841290

On Unix/Linux : you can use md5sum : http://linux.about.com/library/cmd/blcmdl1_md5sum.htm

Answer 5

When I worked with Windows, I found handy HashTab 3rd party tool. It shows MD5, SHA-1 check sums in one of file properties tabs. http://implbits.com/products/hashtab/

Answer 6

Any MD5 will produce a good checksum to verify the file. Any of the files listed at the bottom of this page will work fine. http://en.wikipedia.org/wiki/Md5sum