Python methods for executing system commands Os.system (), Os.popen (), commands

Reprint: http://blog.csdn.net/b_h_l/article/details/12654749

The first type: Using Os.system ()

Import OS
Os.system ('cat/etc/profile')

The second type: Using Os.popen ()

= Os.popen ('cat/proc/cpuinfo') print output.read ()

The object that is returned by Os.popen () is a file read that reads the read () operation to see the output that is executed

The third type: using commands

Import Commands (status,output)=commands.getstatusoutput ('Cat/etc/profile') Print Statusprint output#===============output in Linux=commands.getoutput ('Cat/etc/profile') Status=commands.getstatus ('Cat/etc/profile')#===============You can also use the window (status,output)=commands.getstatusoutput ('dir') Print Statusprint output

Summary: The first is the most common, but sometimes need to master the results of command execution, at this time we can use the third

Python methods for executing system commands Os.system (), Os.popen (), commands