Ø df -: how many bocks used / disk space
Ø finger -: to view who has access to the system
Ø finger userName -: last access time of related user
Ø man command -: to get a manual about related command (Press “q” key to quit from manual)
Ø uname -: gives kernel name
Ø lscpu -: gives information about CPU
Ø lsblk -: gives information about storage devices
Ø lspci -: gives information about PCI devices
Ø dmidecode -: gives information about hardware
Ø free -: gives information about free & used memory
Ø top -: gives information about the top processors running
Ø ps -: gives information about the currently running processors
Ø date -: gives server’s date and time
Ø clear -: clear the konsle
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