In this post, I’m going to give some list of Linux commands, which is very useful to get system hardware information.
#Shows messages in kernel ring buffer
dmesg
#Shows CPU information
cat /proc/cpuinfo
#Shows free & used memory ( -h for human readable, -m for MB, -g for GB)
free -h
#Shows PCI devices
lspci -tv
#Shows USB devices
lsusb -tv
#Show DMI/SMBIOS ( Hardware info ) from the BIOS
dmidecode
#Shows info about disk sda
hdparm -i /dev/sda
#Perform a read speed test on disk sda
hdparm -tT /dev/sda
#Test for unreadable blocks on the disk sda
badblocks -s /dev/sda
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