dpkg equivalent command-line command wanted

[Brian]

On Mon 29 Mar 2010 at 07:54:57 +0200, Detlef Lechner wrote:

> Clicking Synaptic > mark a certain package name > Package > Lock Version
> corresponds to what command-line command in dpkg?

https://help.ubuntu.com/community/PinningHowto#Apt/Dpkg