2 - HARDWARE INFORMATION
dmesg # Display messages in kernel ring buffer
cat /proc/cpuinfo # Display CPU information
cat /proc/meminfo # Display memory information
free -h # Display free and used memory ( -h for human readable,
-m for MB, -g for GB.)
lspci -tv # Display PCI devices
lsusb -tv # Display USB devices
dmidecode # Display DMI/SMBIOS (hardware info) from the BIOS
hdparm -i /dev/sda # Show info about disk sda
hdparm -tT /dev/sda # Perform a read speed test on disk sda
badblocks -s /dev/sda # Test for unreadable blocks on disk sda
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