Linux Commands List

Hardware Information
Show bootup messages:

See CPU information:

cat /proc/cpuinfo
Display free and used memory with:

free -h
List hardware configuration information:

See information about block devices:

Show PCI devices in a tree-like diagram:

lspci -tv
Display USB devices in a tree-like diagram:

lsusb -tv
Show hardware information from the BIOS:

Display disk data information:

hdparm -i /dev/disk
Conduct a read-speed test on device/disk:

hdparm -tT /dev/[device]
Test for unreadable blocks on device/disk:

badblocks -s /dev/[device]

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