安装过程:
yum list | grep libp
yum install -y libpcap-devel
cd /root/tools
wget http://www.ex-parrot.com/~pdw/iftop/download/iftop-0.17.tar.gz
tar zxvf iftop-0.17.tar.gz
cd iftop-0.17
./configure
make
make install
使用:
iftop -i eth0
可以显示出来10s,20s,40s带宽实时值

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