lsblk

Shows a tree view of disks, partitions, and mount points.

lsblk

Include filesystem type, UUID, and labels

• Useful for identifying filesystems and matching them with /etc/fstab.

lsblk -f

Show sizes in bytes (exact values)

lsblk -b

Show only top-level disks (no partitions)

• Good for detecting physical disks without clutter from partitions.

lsblk -d

Output in a script-friendly format

lsblk -o NAME,SIZE,TYPE,MOUNTPOINT

Show permissions and ownership

lsblk -m

List block devices

lsblk -o name,type,fstype,label,partlabel,model,mountpoint,size

Detect partitions

lsblk -o NAME,TYPE,FSTYPE,LABEL,SIZE,MODEL,MOUNTPOINT

Quick and dirty hardware summary

echo -e "\nCPU\n";      lscpu
echo -e "\nMEMORY\n";   free -h
echo -e "\nDISKS\n";    lsblk
echo -e "\nPCI\n";      lspci
echo -e "\nUSB\n";      lsusb
echo -e "\nNETWORK\n";  ifconfig
} | less

Display disk partition sizes

lsblk | grep -v part | awk '{print $1 "\t" $4}'

Show drive names next to their full serial number

lsblk -do name,model,serial

Filter by device type (e.g., disks only)

lsblk -o NAME,SIZE,TYPE | grep disk

Show major/minor device numbers

lsblk -o NAME,MAJ:MIN,SIZE,TYPE

JSON output (excellent for automation)

lsblk -J

Show all devices, including empty ones

lsblk -a

Print total spaces of drives connected in json format

• app-misc/jq is required to be installed

lsblk --json | jq -c '.blockdevices[]|[.name,.size]'

Display disk partition sizes

lsblk -o name,size

Displayu disk partition sizes

lsblk | grep -v part | awk '{print $1 "\t" $4}'