Hardware Information

Question 1

dmesg

Answer 1

Display messages in kernel ring buffer

Question 2

cat /proc/cpuinfo

Answer 2

Display CPU information

Question 3

cat /proc/meminfo

Answer 3

Display memory information

Question 4

free -h (or -m, -g)

Answer 4

Display free and used memory (-h for human readable, -m for MB, -g for GB)

Question 5

lspci -tv

Answer 5

Display PCI devices

Question 6

lsusb -tv

Answer 6

Display USB devices

Question 7

dmidecode

Answer 7

Display DMI/SMBIOS (hardware info) from the BIOS

Question 8

hdparm -i /dev/sda

Answer 8

Show info about disk sda

Question 9

hdparm -tT /dev/sda

Answer 9

Perform a read speed test on disk sda

Question 10

badblocks -s /dev/sda

Answer 10

Test for unreadable blocks on disk sda

Question 11

lshw

Answer 11

Display information about CPU, memory, storage, and network interfaces (ls…HardWare)