Realization of python monitoring usb device signal under linux

1. Message logging under linux

All kinds of messages about the system 1 will generally be recorded in the/var/log/messages file. Some hosts may not be enabled by default. For specific configuration methods, please refer to the following blog:

System Log Configuration/var/log/messages

2. python code implementation

The principle is actually very simple, that is, read the/var/log/messages file and find the information about usb.

#!/usr/bin/env python

usbmsg = open("/var/log/messages", "r")
for line in usbmsg.readlines():
 if ("usb" or "USB") in line:
 print line
usbmsg.close()