speedometer查看流量

　　wget http://excess.org/speedometer/speedometer.py

　　yum install python-urwid

　　chmod 755 speedometer

　　./speedometer.py -rx eth0 -c -tx eth0

　　[root@fast ~]# ./speedometer.py

　　Usage: speedometer [options] tap [[-c] tap]...

　　Monitor network traffic or speed/progress of a file transfer.  At least one

　　tap must be entered.  -c starts a new column, otherwise taps are piled

　　vertically.

　　Taps:

　　[-f] filename [size]  display download speed [with progress bar]

　　-f must be used if directly following another

　　file tap without an expected size specified

　　-rx network-interface display bytes received on network-interface

　　-tx network-interface display bytes transmitted on network-interface

　　Options:

　　-i interval-in-seconds      eg. &5& or &0.25&   default: &1&

　　-p  use plain-text display (one tap only)

　　-b  use old blocky display instead of smoothed

　　display even when UTF-8 encoding is detected

　　-z  report zero size on files that don't exist

　　instead of waiting for them to be created

　　Python Version: 2.4

　　Urwid >= 0.8.9 detected: yes  Urwid >= 0.9.1 and UTF-8 encoding detected: yes