Several commands for the Centos view process

1. Ps-ef | grep java

Represents the process information for viewing all processes where CMD is Java

2. Ps-aux | grep java

-aux Show All States

3. kill-9 [PID]

-9 means the forced process stops immediately

4. lsof-i:8080 View 8080 port occupancy

Other:

1. Netstat

Netstat-nat | grep 3306

2. lsof

Lsof-n-p-i tcp-s Tcp:listen

-N indicates that the host is displayed as an IP address

-P indicates that the port is displayed as a number, by default the port name

-I meaning more, specific man lsof, mainly used to filter lsof output results

-S and -I are used in conjunction to filter the output

3. Telnet

Telnet 127.0.0.1 3306

4. NC

Nc-w 10-n-Z 127.0.0.1 1990-1999

-W indicates waiting time for connection is ten seconds

-N try to convert port number names to port number numbers

-Z does not have input and output for ports that need to be inspected for port scan mode

127.0.0.1 the IP address to check

1990-1999 can be a port or a port

returns the result as an open port, such as the 1997 and 1998 ports In this example

https://my.oschina.net/foreverich/blog/402252

5. View occupy port and kill

http://blog.csdn.net/guoguo1980/article/details/2324454

Lsof-n-p-i tcp-s Tcp:listen

Kill process ID

Several commands for the Centos view process