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This command is for producing GNU sha256sum-compatible hashes on UNIX systems that don't have sha256sum but do have OpenSSL, such as stock IBM AIX.
1.- Saves a wrapper script for UNIX find that does the following:
A.- Feeds a file to openssl on SHA256 hash calculation mode
B.- Echoes the output followed by the filename
2.- Makes the file executable
3.- Runs find on a directory, only processing files, and running on each one the wrapper script that calculates SHA256 hashes
Pending is figuring out how to verify a sha256sum file on a similar environment.
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