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Linuxで1日あたりのデータ送受信量を算出する方法

Last updated at Posted at 2013-07-19

1. 今までに送受信したバイト数を求める

ifconfig コマンドで調べる:

ifconfig eth0
eth0      Link encap:Ethernet  HWaddr **:**:**:**:**:**  
          inet addr:***.***.***.***  Bcast:***.***.***.***  Mask:255.255.255.0
          inet6 addr: ****::****:****:****:****/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:52041393515 errors:0 dropped:0 overruns:0 frame:0
          TX packets:43058710548 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:7319618510115 (7.3 TB)  TX bytes:50480592202458 (50.4 TB)
          Interrupt:20 

ここの RX bytes:7319618510115 (7.3 TB) がOSを起動してから受信した合計バイト数、 TX bytes:50480592202458 (50.4 TB) がOSが起動してから送信した合計バイト数。

2. OSが起動してからの経過時間を調べる

uptime コマンドで調べる:

uptime
 18:14:30 up 292 days, 18:25,  2 users,  load average: 0.36, 0.34, 0.33

ここの 292 days が経過日数。

3. 送受信量を経過日数で割る

受信: 7.3 TB / 292 = 25.6 GB日
送信: 50.4 TB / 292 = 176.7 GB日
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