1、tcp的连接状态 ##netstat -ant|awk -F " " 'NR>2 {++TCP[$NF]} END{for(i in TCP) print i,TCP[i]}' LISTEN 4 ESTABLISHED 1

##netstat -ant|awk '/^tcp/{++TCP[$NF]} END{for(i in TCP) print i,TCP[i]}' LISTEN 4 ESTABLISHED 1

2、awk的计算 cat access_blog.log |awk -F " " 'BEGIN{print "kaishi"}{if($9==200)sum+=$10} END{print sum}'
kaishi 3798