lsblk

List block devices.

$ lsblk

Device

Show all devices (-a)Show filesystem info (-f)List format (-l)JSON output (-J)Tree view (-T)Show size in bytes (-b)Suppress headings (-n)Show only specified devices (-d)

Show permissions (-m)Show full paths (-p)Show topology (-t)Key-value pairs (-P)Use ASCII characters (-i)Inverse dependencies (-s)Show zone model (-z)Output all columns (-O)Show SCSI info (-S)

Custom output columns (-o)Exclude major number (-e)Include major number (-I)Sort by column (-x)

Examples

# List all block devices
lsblk

# Show filesystem info
lsblk -f

# JSON output
lsblk -J

# Show specific device
lsblk /dev/sda

# Tree view
lsblk -T

# Custom columns
lsblk -o NAME,SIZE,TYPE,MOUNTPOINT

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