CMotherboardt Bios ( root) : dmidecode (ou dd if=/dev/mem bs=32k skip=31 count=1 | strings -n 8 | grep -i bios)

RAM : free -m

Procesor : lscpu - cat /proc/cpuinfo

Video card: lspci | grep VGA

List of perypherials bus PCI : lspci

List of perypherials USB : lsusb

Network : ifconfig

HDD ocupation : df -h

Partition swap : swapon -s

kernel, machine name: uname -a

Activity: uptime, top, ps, who, vmstat ...

programs : hardinfo ou lshw

Activation root Ubuntu:
sudo passwd root (<-> sudo passwd -l root)