$ ls -l /var/lib/dpkg
total 6904
drwxr-xr-x 2 root root 4096 Jul 7 16:39 alternatives
-rw-r--r-- 1 root root 1379057 Apr 28 2015 available
-rw-r--r-- 1 root root 1361618 Apr 28 2015 available-old
-rw-r--r-- 1 root root 8 Feb 20 2006 cmethopt
-rw-r--r-- 1 root root 953 Jul 7 15:54 diversions
-rw-r--r-- 1 root root 1034 Jul 7 15:54 diversions-old
drwxr-xr-x 2 root root 339968 Jul 7 16:03 info
-rw-r----- 1 root root 0 Jul 7 16:44 lock
-rw-r----- 1 root root 0 Feb 20 2006 methlock
drwxr-xr-x 7 root root 4096 Feb 7 2011 methods
drwxr-xr-x 2 root root 4096 May 26 2005 parts
-rw-r--r-- 1 root root 460 Jul 7 16:40 statoverride
-rw-r--r-- 1 root root 421 Jul 7 16:40 statoverride-old
-rw-r--r-- 1 root root 1961225 Jul 7 16:44 status
-rw-r--r-- 1 root root 1961225 Jul 7 16:44 status-old
drwxr-xr-x 2 root root 4096 Jul 7 16:43 triggers
drwxr-xr-x 2 root root 4096 Jul 7 16:44 updates