i am trying to uninstall files so i can install new ones this is what i typed
apt-get remove xchat

it gives me three erors
W:Not using locking for read only lick file /var/lib/dpkg/lock
E: Unable to write to /var/cache/apt
E: The pacage lists or shatus file could not be parsed or opened


any help or sugestions would be grately apreciated
thanks