查看http进程数
[root@localhost conf]# ps -ef|grep httpd|wc -l
333
统计连接数状态：
[root@localhost conf]# netstat -n|awk '/^tcp/{++S[$NF]} END {for(a in S) print a,S[a]}' LAST_ACK 173 SYN_RECV 35 CLOSE_WAIT 159 ESTABLISHED 152 FIN_WAIT1 29 FIN_WAIT2 10 CLOSING 39 TIME_WAIT 103
