SYSTEM INFORMATION: Linux system information uname -a KERNEL RELEASE INFORMATION uname -r HOW LONG THE SYSTEM HAS BEEN RUNNING + LOAD uptime SYSTEM HOST NAME hostname HOST IP hostname -I or ifconfig CPU INFO cat /proc/cpuinfo MEMORY INFORMATION cat /proc/meminfo USED MEMORY free -h ROUTING TABLE INFO route -n CURRENT RUNNING PROCESS ps -a RUNNING SERVICE INFO systemctl list - units | grep running | sort GRUB INFO cat /etc/default/grub ACTIVE USERS cut /etc/passwd -d":" -f1 | sort code github-code