Linux Commands Cheatsheet

includes daily administrative actions

Disks

Badblocks

source

Just Check

sudo badblocks -sv /dev/sda

Check and Fix

• This will check the whole disk and print out all bad blocks encountered on /dev/sda.

sudo badblocks -sv /dev/sda  > bad-blocks-result
sudo fsck -t ext4 -l bad-blocks-result /dev/sda1

S.M.A.R.T.

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Overall Health

# su
smartctl -H /dev/<device>

S.M.A.R.T. data

source

• TYPE: Pre-fail for attributes that are said to indicate impending failure, or Old_age for attributes that just indicate wear and tear.

# su
smartctl -a /dev/<device>

Make Filesystem

sudo mkfs.** /dev/<partition>