Here comes the Sun

问题： 您要通过python的subprocess模块执行一些命令，要在程序中获得命令的标准输出，此外，命令中还有管道操作。 解决： 以这个命令为例： cat /home/admin/deploy/log/2009-11-11.log ｜grep example.com ｜wc -l import subprocess cmd1 = ‘cat /home/admin/deploy/log/2009-11-11.log’ cmd2 = ‘grep example.com’ cmd3 = ‘wc -l’ pipe1 = subprocess.Popen(cmd1.split(), stdout=subprocess.PIPE) pipe2 = subprocess.Popen(cmd2.split(), stdin=pipe1, stdout=subprocess.PIPE) pipe3 = subprocess.Popen(cmd3.split(), stdin=pipe2, stdout=subprocess.PIPE) result = pipe3.communicate()[0]