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Introduction to Linux - A Hands on Guide
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For anyone else wondering, as I saw, what the contents of /proc/uptime is, the first number is the total number of seconds the system has been up. The second number is how much of that time the machine has spent idle, in seconds.
That's a new qn; please start a new thread.
chkconfig --list | grep -E mysql|http
[root@localhost ~]# chkconfig --list | grep -E mysqld|httpd
(98)Address already in use: make_sock: could not bind to address [::]:80
(98)Address already in use: make_sock: could not bind to address 0.0.0.0:80
no listening sockets available, shutting down