Get system statistics - stat statistics iostat netstat mpstat

If you want to see some stats about your linux machine use the followings commands.
mpstat to show processor related stats.
bash-4.1# mpstat 
Linux 2.6.38.2-smp (darkstar)   10/03/11        _i686_  (2 CPU)

14:54:58     CPU    %usr   %nice    %sys %iowait    %irq   %soft  %steal  %guest   %idle
14:54:58     all    7.00    0.28    3.16    0.63    0.00    0.40    0.00    0.00   88.53
iostat to show cpu stats and input/output stats of devices, partitions and network filesystem.
bash-4.1# iostat 
Linux 2.6.38.2-smp (darkstar)   10/03/11        _i686_  (2 CPU)

avg-cpu:  %user   %nice %system %iowait  %steal   %idle
           6.95    0.27    3.46    0.71    0.00   88.61

Device:            tps   Blk_read/s   Blk_wrtn/s   Blk_read   Blk_wrtn
sda               4.60        77.79        33.99    2036477     889763
netstat to show network connections, routing table and interface statistics:
bash-4.1# netstat 
Active Internet connections (w/o servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State      
tcp        0      0 192.168.2.4:48318       baymsg1010812.gate:1863 ESTABLISHED 
tcp        0      0 192.168.2.4:58387       fx-in-f12:jabber-client ESTABLISHED 
tcp        0      0 localhost:53113         localhost:37164         TIME_WAIT   
tcp        0      0 ::ffff:192.168.2.:46683 projects.sourcefor:http ESTABLISHED 
Active UNIX domain sockets (w/o servers)
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