使用子进程在Python中运行linux命令时出错

Question

The goal here is to get a key or p/w from a website.

In Python, I have tried both os.system() and subprocess.call([]) to run following linux command but both method ends up with error.

os.system("curl -s http://example.com | grep ' "Key" : * ' | cut -f1 -d " " | cut -b5- | rev | cut -b9- | rev") 

In linux following is being used and that works fine.

PW = 'curl -s http://example.com | grep ' "Key" : * ' | cut -f1 -d " " | cut -b5- | rev | cut -b8- | rev'

The error I see is SyntaxError: invalid syntax and it points at the "key" part

Answer 1

You probably just need to escape your double quotes. Try:

os.system("curl -s http://example.com | grep ' \"Key\" : * ' | cut -f1 -d \" \" | cut -b5- | rev | cut -b9- | rev")