Calling python from bash, how to change python working dir?

Question

I have a bash script that goes like this :

# gets all relevant files in the directory
cp ../update_files/* ./transfer_dir

# copy the python scripts to that directory
cp ../tools/update_tool/* ./transfer_dir

# execute the python scripts 
python ./transfer_dir/merge.py

Now the problem is that when I try to execute the python script, it seens that the "working directory" is ., and not ./transfer_dir and I can't file the update_files copied earlier

How can I change that? I don't want to modify my python scripts too much since they are mostly location agnostic.

unutbu · Accepted Answer · 2012-01-30 20:13:40Z

7

Use cd:

cd transfer_dir
# execute the python scripts 
python merge.py
# restore old directory
cd ..

answered Jan 30, 2012 at 20:13

unutbu

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2 Comments

Peter Rowell Over a year ago

@Eric: It's good to be able to laugh at yourself; keeps you from getting too many ulcers.

Eric Over a year ago

As you might have noticed I am far from masterful in bash and I was expecting something extremely complicated for this task.

Community · Accepted Answer · 2017-05-23 12:06:33Z

1

you can change the path in the bash script @see ubuntus answer change working dir via bash
you can change the working directory in the script itself

import os

os.chdir("transfer_dir")

I would recommend to use solution 1, just added 2. for completenes.

edited May 23, 2017 at 12:06

CommunityBot

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answered Jan 30, 2012 at 20:23

Nicola Coretti

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