What commands are available in the Mozilla "certutil" tool? How to get a list of those commands?

If you want to see a list of commands that supported in the Mozilla "certutil" tool, you use the "certutil -H" command as shown in this tutorial:

Go to a command line window and run the "certutil -H" command. You see the list commands displayed:

C:\fyicerter>\fyicerter\nss\bin\certutil -H

-A   Add a certificate to the database (create if needed)
...

-E   Add an Email certificate to the database (create if needed)
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-C   Create a new binary certificate from a BINARY cert request
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-G   Generate a new key pair
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-D   Delete a certificate from the database
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-U   List all modules
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-K   List all keys
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-L   List all certs, or print out a single named cert
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-M   Modify trust attributes of certificate
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-N   Create a new certificate database
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-T   Reset the Key database or token
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-O   Print the chain of a certificate
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-R   Generate a certificate request (stdout)
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-V   Validate a certificate
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-S   Make a certificate and add to database
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