= CPU =
{{{
$ less /proc/cpuinfo
$ less /proc/loadavg
$ uptime
}}}
= Memory =
{{{
$ less /proc/meminfo
$ free
}}}
= Hard Disk =
{{{
$ dh -h
$ du
}}}
= Integration =
{{{
$ top
$ ps -ef
$ vmstat
$ netstat
$ sysstat
}}}
= Hardware =
{{{
$ sensors
}}}
= Tools =
 * MRTG
 * RRDTool
 * ganglia