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

• uname -a for all information regarding the kernel version,

  uname -r for the exact kernel version

• lsb_release -afor all information related to the Ubuntu version,

  lsb_release -r for the exact version

• sudo fdisk -l for partition information with all details.

  _{For more understandable information regarding paritions, please use commands given in other answers.}

Kernel Version

cat /proc/version             # detail about for the kernel image version

Distribution Version

lsb_release -a

Partition Sizes

cat /proc/partitions          # for basic sizes
sudo fdisk -l /dev/<device>   # eg /dev/sda

Commands:

• Kernel Version:

  uname -r
  

• Distribution version number:

  lsb_release -sr
  

• All partition sizes of the HDD in Terminal:

  lsblk -o NAME,SIZE
  

Example: