cheat:lsblk
# To show all available block devices along with their partitioning schemes:
lsblk
# To show SCSI devices:
lsblk --scsi
# To show a specific device:
lsblk /dev/sda
# To verify TRIM support:
# Check the values of DISC-GRAN (discard granularity) and DISC-MAX (discard max bytes) columns.
# Non-zero values indicate TRIM support
lsblk --discard
# To fetch info about filesystems:
lsblk --fs
# For JSON, LIST or TREE output formats use the following flags:
lsblk --json
lsblk --list
lsblk --tree # default view
tldr:lsblk
# lsblk
# Lists information about devices.
# More information: <https://manned.org/lsblk>.
# List all storage devices in a tree-like format:
lsblk
# Also list empty devices:
lsblk -a
# Print the SIZE column in bytes rather than in a human-readable format:
lsblk -b
# Output info about filesystems:
lsblk -f
# Use ASCII characters for tree formatting:
lsblk -i
# Output info about block-device topology:
lsblk -t
# Exclude the devices specified by the comma-separated list of major device numbers:
lsblk -e 1,7
# Display a customized summary using a comma-separated list of columns:
lsblk --output NAME,SERIAL,MODEL,TRAN,TYPE,SIZE,FSTYPE,MOUNTPOINT
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cheat.sh