Is it possible to send a list of related commands using os.system() in python? I mean if I want to change current directory to a specific directory and then have a list of contents, how can I do it? (I don't want to use dir "path"- I want to do both changing current dir, and listing the directories)
Note : It was just an example, I want to know how I can send multiple commands! (Some related commands in a row)
Note : Python 3.2
os.system uses the local system shell. You can do it as @Rwaing suggests on many unixy shells but not other places like windows. A better option is subprocess.call and the cwd (current working directory) param
import subprocess
subprocess.call('dir', shell=True, cwd='somepath')
As others have mentioned, if all you really want to do is get a list of the files, the existin python api does it quite well.
Edit: sending mutiple commands
One way to send multiple commands is to pump them into the child shell's stdin. Its shell dependant, but here's a windows example:
import os
import subprocess as subp
p=subp.Popen('cmd.exe', shell=True, stdin=subp.PIPE)
p.stdin.write("""dir
cd "\\program files"
dir
""")
p.stdin.write('exit' + os.linesep)
p.wait()
del p
print 'done'
print ('done')). I receice this error : >>> Traceback (most recent call last): File "C:/Users/ghasemi.IT/Desktop/pypy.py", line 7, in <module> """) TypeError: 'str' does not support the buffer interface >>>have a look at os.listdir(path): https://docs.python.org/3/library/os.html#os.listdir
example:
import os
entries = os.list.dir('/home/foo')
&for the same purpose. This command will list the contents of your home directory and pause until you press Enter.os.system(r'cd %USERPROFILE% & dir & pause >nul')