linux列出所有网卡和网卡速度

1. 

vi port-speed.sh

2. 写入以下内容

#!/bin/sh
dmidecode|grep -P -A5 "Memory\s+Device"|grep Size|grep -v Range -n
lshw -c network -businfo
ip a |awk '/state UP/{print $2}' | sed 's/://' | while read output;
do
  echo "+++++++++++++++++++++++++++"
  echo $output:
  ethtool $output | egrep "Supported ports|Speed"
done

3. 

chmod +x port-speed.sh

4.

./port-speed.sh