vnstat
vnstat command shows bandwidth usage on your system.
[root@server12 ~]# vnstat Database updated: Wed Dec 13 06:51:43 2017 eth0 since 11/04/13 rx: 4.81 TiB tx: 63.40 TiB total: 68.21 TiB monthly rx | tx | total | avg. rate ------------------------+-------------+-------------+--------------- Nov '17 94.81 GiB | 2.02 TiB | 2.11 TiB | 7.00 Mbit/s Dec '17 54.05 GiB | 1.00 TiB | 1.05 TiB | 8.51 Mbit/s ------------------------+-------------+-------------+--------------- estimated 136.37 GiB | 2.52 TiB | 2.65 TiB | daily rx | tx | total | avg. rate ------------------------+-------------+-------------+--------------- yesterday 4.45 GiB | 84.15 GiB | 88.60 GiB | 8.60 Mbit/s today 1.36 GiB | 25.79 GiB | 27.15 GiB | 9.22 Mbit/s ------------------------+-------------+-------------+--------------- estimated 4.77 GiB | 90.35 GiB | 95.11 GiB | [root@server12 ~]#
Bandwidth usage by day
[root@server12 ~]# vnstat -d eth0 / daily day rx | tx | total | avg. rate ------------------------+-------------+-------------+--------------- 11/14/17 3.11 GiB | 71.21 GiB | 74.32 GiB | 7.22 Mbit/s 11/15/17 2.97 GiB | 68.86 GiB | 71.83 GiB | 6.97 Mbit/s 11/16/17 3.14 GiB | 69.58 GiB | 72.72 GiB | 7.06 Mbit/s 11/17/17 3.11 GiB | 72.84 GiB | 75.95 GiB | 7.37 Mbit/s 11/18/17 2.87 GiB | 70.07 GiB | 72.94 GiB | 7.08 Mbit/s 11/19/17 3.96 GiB | 64.32 GiB | 68.28 GiB | 6.63 Mbit/s 11/20/17 2.71 GiB | 62.55 GiB | 65.26 GiB | 6.34 Mbit/s 11/21/17 2.89 GiB | 66.82 GiB | 69.72 GiB | 6.77 Mbit/s 11/22/17 2.86 GiB | 66.28 GiB | 69.14 GiB | 6.71 Mbit/s 11/23/17 3.14 GiB | 72.26 GiB | 75.40 GiB | 7.32 Mbit/s 11/24/17 3.26 GiB | 67.98 GiB | 71.24 GiB | 6.92 Mbit/s 11/25/17 3.01 GiB | 66.87 GiB | 69.87 GiB | 6.78 Mbit/s 11/26/17 3.70 GiB | 64.83 GiB | 68.53 GiB | 6.65 Mbit/s 11/27/17 3.01 GiB | 68.27 GiB | 71.28 GiB | 6.92 Mbit/s 11/28/17 2.88 GiB | 66.41 GiB | 69.29 GiB | 6.73 Mbit/s 11/29/17 3.42 GiB | 73.41 GiB | 76.83 GiB | 7.46 Mbit/s 11/30/17 2.94 GiB | 67.57 GiB | 70.52 GiB | 6.85 Mbit/s 12/01/17 3.98 GiB | 73.32 GiB | 77.30 GiB | 7.51 Mbit/s 12/02/17 3.86 GiB | 73.75 GiB | 77.61 GiB | 7.54 Mbit/s 12/03/17 4.37 GiB | 79.14 GiB | 83.51 GiB | 8.11 Mbit/s 12/04/17 3.64 GiB | 78.50 GiB | 82.14 GiB | 7.97 Mbit/s 12/05/17 4.14 GiB | 80.11 GiB | 84.25 GiB | 8.18 Mbit/s 12/06/17 4.61 GiB | 85.19 GiB | 89.80 GiB | 8.72 Mbit/s 12/07/17 4.86 GiB | 85.86 GiB | 90.72 GiB | 8.81 Mbit/s 12/08/17 4.56 GiB | 89.35 GiB | 93.91 GiB | 9.12 Mbit/s 12/09/17 4.62 GiB | 88.69 GiB | 93.31 GiB | 9.06 Mbit/s 12/10/17 5.11 GiB | 90.39 GiB | 95.50 GiB | 9.27 Mbit/s 12/11/17 4.49 GiB | 88.47 GiB | 92.96 GiB | 9.03 Mbit/s 12/12/17 4.45 GiB | 84.15 GiB | 88.60 GiB | 8.60 Mbit/s 12/13/17 1.38 GiB | 26.12 GiB | 27.50 GiB | 9.23 Mbit/s ------------------------+-------------+-------------+--------------- estimated 4.76 GiB | 90.43 GiB | 95.19 GiB | [root@server12 ~]#