CD to a directory

Question

I have below code in tes.py file.

#!/usr/bin/python
import os

path = '/tmp'
f_path = os.chdir( path )
f = os.getcwd()
print f
os.system('cd f')

I want to get into /tmp directory when I execute tes.py file. But I am getting following error.

[rishb@xxxxxxx ~]$ ./tes.py
/tmp
sh: line 0: cd: f: No such file or directory

Is there any way to achieve my goal in python?

The error clearly shows that `f` is not found. Check if you have `f` in `/tmp` — thefourtheye, Dec 24 '15 at 11:05
You've used literal 'f' and not variable f in the last line. Try what @Leo has said. — manishrw, Dec 24 '15 at 11:08
`f` is **a variable in Python**, so if you just put it in a string sure it doesn't work. String always is a string is a string is a string. — Remi Guan, Dec 24 '15 at 11:09
@LeoHuckvale I tried this now os.system('cd '+f). But still pwd has not changed after executing the code. Now I am getting result as: `[rishb@xxxxx ~]$ ./tes.py /tmp [rishb@chfsn1xmcdc01 ~]$ pwd /home/oracle [rishb@chfsn1xmcdc01 ~]$` — Rishab, Dec 24 '15 at 11:10

score 4 · Accepted Answer · answered Dec 24 '15 at 11:07

use os.chdir

cd is a bash internal command, which change cwd of the CURRENT process, os.system create a subprocess, and the subprocess can not change cwd of the python process

And python can't change cwd of bash who is its parent.

You can't change cwd of bash using any program, except bash's source command

CD to a directory

1 Answers1