Key Sig

W: GPG error: http://archive.canonical.com maverick Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <[email protected]>
virgae@Huw-Laitalum:~$ sudo apt-key adv --recv-keys --keyserver keyserver.ubuntu.com <key> »
bash: key: No such file or directory
virgae@Huw-Laitalum:~$ sudo apt-key adv --recv-keys --keyserver keyserver.ubuntu.com <key>
bash: syntax error near unexpected token `newline'
virgae@Huw-Laitalum:~$ sudo apt-key adv --recv-keys --keyserver keyserver.ubuntu.com <key>
bash: syntax error near unexpected token `newline'
virgae@Huw-Laitalum:~$ sudo apt-key adv --recv-keys --keyserver keyserver.ubuntu.com <^C
virgae@Huw-Laitalum:~$ sudo apt-key adv --recv-keys --keyserver keyserver.ubuntu.com <40976EAF437D05B5>
bash: syntax error near unexpected token `newline'
virgae@Huw-Laitalum:~$ sudo apt-key adv --recv-keys
[sudo] password for virgae:
Sorry, try again.
[sudo] password for virgae:
Executing: gpg --ignore-time-conflict --no-options --no-default-keyring --secret-keyring /tmp/tmp.dGGJ6b1EQl --trustdb-name /etc/apt/trustdb.gpg --keyring /etc/apt/trusted.gpg --primary-keyring /etc/apt/trusted.gpg --recv-keys
virgae@Huw-Laitalum:~$