echo "install dstat"
yum -y install dstat
 
echo "Now let list all the aivalable plugins"
dstat --list

echo "get cpu usage"
dstat -t --cpu --cpu24
 
echo "get disk read/write usage"
dstat -t --disk
 
echo "get top process memory usage"
dstat --top-io --top-mem

echo "install iotop"
yum -y install iotop

echo "launch iotop"
iotop --only

echo "install lshw"
yum -y install lshw

echo "list everything"
lshw
 
echo "only list network informations"
lshw -class network

echo "use this easy command :"
top

echo "install iftop"
yum -y install iftop

iftop

echo "install wireshark"
yum -y install wireshark

echo "capture network interface ens33 for 12 hours"
timeout 12h 'tshark -i ens33 -w /tmp/packets.pcap'

echo "install nmap"
yum -y install nmap

echo "determines which ports are listening for TCP connections from localhost"
nmap -sT -O localhost

echo "display top"
top

echo "display human readable"
free -h