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May 19, 2015 - A Look At The New Commandlinefu
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IBM AIX: Calculate the SHA256 hashes of a directory without sha256sum

Terminal - IBM AIX: Calculate the SHA256 hashes of a directory without sha256sum
echo '#! /usr/bin/ksh\necho `cat $1 | openssl dgst -sha256` $1' > sslsha256; chmod +x sslsha256; find directory -type f -exec ./sslsha256 \{\} \;
2013-09-18 17:37:50
User: RAKK
Functions: chmod echo find
0
IBM AIX: Calculate the SHA256 hashes of a directory without sha256sum

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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