How do I find the kernel version, Ubuntu release and disk partition information from the terminal?

uname -a # for all info regarding kernel version,
uname -r # for exact kernel version
cat /proc/version # detail about for the kernel image version
 
lsb_release -a # for all information related to ubuntu version,
lsb_release -r # for exact version
sudo fdisk -l # for partition info with all details. 
 
cat /proc/partitions # for basic sizes