How to change md5 of file6/9/2023 Obviously, including the file name has the disadvantage that even the very same file can be referenced to by different names and can hence have numerous distinct hashes: /tmp/test$. Another application could include metadata in the hash input along with the file contents, or include hashes that only cover part of the data. The script simply prepends the file names to the hashed data. Not the file name, not the permission bits, owner information, timestamps or other metadata.īut it doesn't have to be done like that. Now, you perhaps used the sha1sum, sha256sum and md5sum utilities, and indeed they only include the contents of the given file in the data to be hashed. So, the result you get depends entirely on what you choose to give as the input, and you didn't show that. SHA-1, SHA-256 and MD5 don't calculate hashes of files or file names, they calculate hashes of bit streams. Well, this is somewhat a false connection. When I change a file's name this does not affect its checksum (I've tried SHA-1, SHA-256 and MD5).
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