1 2 3 4 5 | ii linux-headers-4.4.0-31 4.4.0-31.50 all Header files related to Linux kernel version 4.4.0 ii linux-headers-4.4.0-31-generic 4.4.0-31.50 amd64 Linux kernel headers for version 4.4.0 on 64 bit x86 SMP ii linux-headers-4.4.0-57 4.4.0-57.78 all Header files related to Linux kernel version 4.4.0 ii linux-headers-4.4.0-57-generic 4.4.0-57.78 amd64 Linux kernel headers for version 4.4.0 on 64 bit x86 SMP ii linux-headers-generic 4.4.0.57.60 amd64 Generic Linux kernel headers |