The add-apt-key will request the specified GPG
key from a public keyserver and insert it into the APT keyring so
that archives signed with that key will be trusted.
OPTIONS
This program follows the usual GNU command line syntax,
with long options starting with two dashes (--).
-h, --help
Show online help (usage).
-v, --verbose
verbose mode will show each command before it is executed.
-k, --keyserver name
Select a specific keyserver to use.
keyid
The GPG key identifier to add.
FILES
/etc/default/add-apt-key
Configuration file specifying the public keyserver to use.