Check bundle certificate expiration date

While it's not as simple as an openssl command, I did find this site that was of use in trying to do this. It requires creating and executing a perl script to splt the bundle and run openssl on each certificate in there.

I modified the file to output only what was necessary (expiration dates). So basically, I just changed

print 'echo "$thisfile" | openssl x509 -noout -text';

print 'echo "$thisfile" | openssl x509 -noout -subject -dates';

Works pretty well for me.