Important linux commands

1. ulimit command is used to set and view the system resource(eg: stack size) for any process.
2. You can examine binary images using the nm and objdump commands to display symbols, their addresses, segments, and so on.
3. To check the info about the ports that are being used in a system, use netstat command

• http://www.cyberciti.biz/faq/what-process-has-open-linux-port/