On the page, answer 21 worked great for me to compare two SSL certificates:
% xxd b1.crt > b1.hex
% xxd b2.crt > b2.hex
% vimdiff b1.hex b2.hex
http://superuser.com/questions/125376...ow-do-i-compare-binary-files-in-linux
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Examples for generating random numbers for bash scripts.
http://tldp.org/LDP/abs/html/randomvar.html
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Good reference for setting up an informative, colorful bash shell prompt.
http://www.ibm.com/developerworks/linux/library/l-tip-prompt/
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