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installation of downloaded package AutoQ3D Program
john822@john822-desktop:~$ apt-get install q3d
E: Could not open lock file /var/lib/dpkg/lock - open (13: Permission denied)
E: Unable to lock the administration directory (/var/lib/dpkg/), are you root?
john822@john822-desktop:~$ sudo apt-get install q3d
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Couldn't find package q3d
I downloaded autoQ3d which is a deb package and it shows in my directory but it says it can't find the package. What command should I be using to force the install?:(