如何获得网络传输量?
在Linux下用 ifconfig命令会得到如下内容:
eth0 Link encap:Ethernet HWaddr
inet addr:210.45.251.33 Bcast:210.45.251.255 Mask:255.255.255.0
inet6 addr: fe80::215:58ff:fe47:3fa1/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:120220 errors:0 dropped:0 overruns:0 frame:0
TX packets:59 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:13062030 (12.4 MiB) TX bytes:7125 (6.9 KiB)
Interrupt:20
如果我只想得到RX bytes:13062030 (12.4 MiB) TX bytes:7125 (6.9 KiB))
中的12.4和6.9,应该怎么做?