Linux

Finding what process is bound to a port

netstat -tlnp | grep 8080

last column is the pid.

Show swap usage

[root@dsdwsprddb02 ~]# ls -al /var/log/sa/ | grep "Jan 20"
-rw-r--r--  1 root root 303696 Jan 20 14:20 sa20
[root@dsdwsprddb02 ~]#  sar -W -f /var/log/sa/sa20
Linux 2.6.18-274.el5 (dsdwsprddb02.traderonline.com)    01/20/2012

12:00:01 AM  pswpin/s pswpout/s
12:10:01 AM     22.21      0.00
12:20:01 AM      2.28      0.00
12:30:01 AM      0.30      0.00
12:40:01 AM      0.33      0.00
12:50:01 AM      3.62      0.00
01:00:01 AM      0.40      0.00
01:10:01 AM      0.00      0.00
01:20:01 AM      0.11      0.00
01:30:01 AM      0.35      0.00
...