monitor linux preformance

http://www.tecmint.com/command-line-tools-to-monitor-linux-performance/

1. Top – Linux Process Monitoring

2. VmStat – Virtual Memory Statistics

3. Lsof – List Open Files

5. Netstat – Network Statistics

4. Tcpdump – Network Packet Analyzer

6. Htop – Linux Process Monitoring

7. Iotop – Monitor Linux Disk I/O

8. Iostat – Input/Output Statistics

9. IPTraf – Real Time IP LAN Monitoring

12. NetHogs – Monitor Per Process Network Bandwidth