[bash] check system CPU busy top 10, check sys memory status, monitor CPU usage every 2 sec

[check system CPU busy top 10]
list entire table
$ ps aux | sort -rk 3,3 | head -n 10


[Monitor the CPU usage every 2 sec]
watch "ps aux | sort -rk 3,3 | head -n 6"


[check sys memory status]

$  cat /proc/meminfo
MemTotal:        3918656 kB
MemFree:         1422332 kB
Buffers:           36868 kB
Cached:           929076 kB
SwapCached:       107124 kB
Active:          1166772 kB
Inactive:        1077372 kB






or you can check out ...

grep MemTotal /proc/meminfo | awk '{print $2}'