load: Use the top and uptime commands to view the system load. The system load is defined as the average number of threads in the run queue within a specific time interval.
CPU utilization: top | grep Cpu
top -p 28654: Specify the process to view
Disk remaining space: df -h
Disk usage: du -d 1 -j /home/gpgong
Network Traffic: sar -n DEV 1 1
Disk IO: iostat -d -k
Memory usage: free -m
SWAP IO: vmstat