查看目前Apache 目前在線人數
可以透過httpd 進程數量來推算
ps -ef|grep httpd|wc -l
43
若要查看每一筆進程則輸入
ps -ef|grep httpd
apache 3817 2860 0 03:41 ? 00:00:00 /usr/sbin/httpd -DFOREGROUND
apache 3864 2860 0 03:41 ? 00:00:00 /usr/sbin/httpd -DFOREGROUND
apache 3924 2860 0 03:41 ? 00:00:00 /usr/sbin/httpd -DFOREGROUND
apache 3944 2860 0 03:41 ? 00:00:00 /usr/sbin/httpd -DFOREGROUND
apache 3946 2860 0 03:41 ? 00:00:00 /usr/sbin/httpd -DFOREGROUND
apache 3949 2860 0 03:41 ? 00:00:00 /usr/sbin/httpd -DFOREGROUND
apache 3950 2860 0 03:41 ? 00:00:00 /usr/sbin/httpd -DFOREGROUND
apache 4017 2860 0 03:42 ? 00:00:00 /usr/sbin/httpd -DFOREGROUND
apache 4025 2860 0 03:42 ? 00:00:00 /usr/sbin/httpd -DFOREGROUND
apache 4038 2860 0 03:42 ? 00:00:00 /usr/sbin/httpd -DFOREGROUND
apache 4051 2860 0 03:42 ? 00:00:00 /usr/sbin/httpd -DFOREGROUND
apache 4199 2860 0 03:43 ? 00:00:03 /usr/sbin/httpd -DFOREGROUND
apache 4214 2860 0 03:44 ? 00:00:00 /usr/sbin/httpd -DFOREGROUND
apache 7368 2860 0 04:10 ? 00:00:02 /usr/sbin/httpd -DFOREGROUND
apache 7406 2860 1 04:10 ? 00:00:02 /usr/sbin/httpd -DFOREGROUND
apache 7493 2860 1 04:11 ? 00:00:02 /usr/sbin/httpd -DFOREGROUND
apache 7591 2860 1 04:12 ? 00:00:01 /usr/sbin/httpd -DFOREGROUND
apache 7618 2860 1 04:12 ? 00:00:02 /usr/sbin/httpd -DFOREGROUND
apache 7702 2860 0 04:12 ? 00:00:01 /usr/sbin/httpd -DFOREGROUND
apache 7714 2860 0 04:12 ? 00:00:01 /usr/sbin/httpd -DFOREGROUND
apache 7717 2860 1 04:12 ? 00:00:01 /usr/sbin/httpd -DFOREGROUND
apache 7860 2860 0 04:13 ? 00:00:00 /usr/sbin/httpd -DFOREGROUND
apache 7868 2860 1 04:13 ? 00:00:01 /usr/sbin/httpd -DFOREGROUND
apache 7879 2860 1 04:13 ? 00:00:01 /usr/sbin/httpd -DFOREGROUND
apache 7882 2860 0 04:13 ? 00:00:00 /usr/sbin/httpd -DFOREGROUND
apache 7925 2860 1 04:13 ? 00:00:01 /usr/sbin/httpd -DFOREGROUND
apache 7930 2860 0 04:13 ? 00:00:00 /usr/sbin/httpd -DFOREGROUND
apache 7931 2860 1 04:13 ? 00:00:00 /usr/sbin/httpd -DFOREGROUND
apache 7945 2860 1 04:13 ? 00:00:00 /usr/sbin/httpd -DFOREGROUND
apache 7976 2860 1 04:14 ? 00:00:00 /usr/sbin/httpd -DFOREGROUND
apache 7992 2860 1 04:14 ? 00:00:00 /usr/sbin/httpd -DFOREGROUND
apache 7994 2860 1 04:14 ? 00:00:00 /usr/sbin/httpd -DFOREGROUND
apache 7995 2860 1 04:14 ? 00:00:00 /usr/sbin/httpd -DFOREGROUND
apache 7996 2860 1 04:14 ? 00:00:00 /usr/sbin/httpd -DFOREGROUND
apache 8015 2860 2 04:14 ? 00:00:00 /usr/sbin/httpd -DFOREGROUND
apache 8021 2860 0 04:14 ? 00:00:00 /usr/sbin/httpd -DFOREGROUND
apache 8062 2860 1 04:14 ? 00:00:00 /usr/sbin/httpd -DFOREGROUND
apache 8063 2860 3 04:14 ? 00:00:00 /usr/sbin/httpd -DFOREGROUND
root 8093 5429 0 04:14 pts/0 00:00:00 grep --color=auto httpd