$ sudo dpkg -l udev 
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Installed/Config-files/Unpacked/Failed-config/Half-installed
|/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad)
||/ Name                             Version                          Description
+++-================================-================================-================================================================================
ii  udev                             0.100-1                          /dev/ and hotplug management daemon
$