uname -a: Display Linux system information. hostname: Show the system hostname. uptime: Display how long the system has been running.
top: Display real-time system statistics, including CPU usage. mpstat: Report processors related statistics. lscpu: Display information about the CPU architecture.
free -m: Display the amount of free and used memory in megabytes. vmstat: Report virtual memory statistics.
df -h: Display disk space usage of file systems in human-readable format. du -h: Estimate file space usage.
who: Display who is logged on. w: Show who is logged in and what they are doing.