Oracle Linux/Common Tools

Common Tools

Listening Ports

netstat

~$ netstat -lnp
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
tcp        0      0 127.0.0.1:17003         0.0.0.0:*               LISTEN      -
tcp        0      0 127.0.0.1:40333         0.0.0.0:*               LISTEN      -
udp    42240      0 127.0.0.1:8125          0.0.0.0:*                           -
udp    32256      0 169.254.0.2:53          0.0.0.0:*                           -

process activity

top

~$ top

LoadAvg Load average over 1, 5, and 15 minutes. divide by number of cores to determine load.

ps

ps -AlH

This shows all the processes running, in long format, with the extra full format output