View shell scripts for Linux server network traffic

Previously wrote a view of the Linux server current traffic small script, very simple, but can intuitively give us some information

#!/bin/sh## #统计10s内的平均流量, if [  "$"  =  " ];then   echo -e" in megabytes   "\n      use interface_name after the script,like  \ "$0 eth0\" ... \ n "   exit -1fiecho -e " \n       start monitoring the $1,press \ "ctrl+c\"  to stop "echo --------- -------------------------------------------------#ls   /etc/sysconfig/network-scripts/|grep  ifcfg|cut -d  "-"  -f 2while true   do   rx_bytes= ' cat  /proc/net/dev|grep  "$" |awk  ' {print $1} ' |cut -d  ":  -f 2 '     tx_bytes= ' cat /proc/net/dev|grep  ' $ ' |awk  ' {print $9} '    sleep  10   rx_bytes_later= ' cat /proc/net/dev|grep  ' $ ' |awk  ' {print $1} ' |cut  -d  ":"  -f 2 ' &nbsP;  tx_bytes_later= ' cat /proc/net/dev|grep  ' $ ' |awk  ' {print $9} '     ## #Mb =b*8/1024/1024   speed_rx= ' echo  ' scale=2; ($RX _bytes_later -  $RX _bytes ) *8/1024/1024/10 "|BC '    speed_tx= ' echo " scale=2; ($TX _bytes_later -  $TX _bytes) *8/ 1024/1024/10 "|BC '    printf "%-3s %-3.1f %-10s %-4s %-3.1f %-4s\n "  IN:  $speed _rx mb/s out:  $speed _tx mb/s   done

Use effects such as

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View shell scripts for Linux server network traffic