Update ssh private key pass phrase.

I like to keep certain pass words in sync with one another as I perform gigs for various clients and adhere to pass word policies for each company. As part of the password update, I typically need to update my SSH key pass phrase using the following command:

$ ssh-keygen -f ~/.ssh/id_rsa  -p

Note that the filename in question is my private key, specified by the -f.

That allows me to keep the same password across a single client or organization.