Passing python variable to linux shell

Question

I am running a python snippet inside a heredoc in bash script. I want to pass a string from a python variable to the shell. Perhaps set a shell variable. How can I do this ??

I could write the variable to a temp file but I want to know if there is any way to send the data back to the shell parent without involving filesystem. — user1600936
– user1600936, Commented Oct 24, 2013 at 7:54

Barmar · Accepted Answer · 2013-10-24 07:36:11Z

2

variable=$(python - <<EOS
...
EOS
)

Whatever the python script writes to stdout will be stored in the variable.

answered Oct 24, 2013 at 7:36

Barmar

789k57 gold badges555 silver badges669 bronze badges

Sign up to request clarification or add additional context in comments.

4 Comments

user1600936 Over a year ago

But This will dump everything the snippet writes, What do I do if I want to selectively send something ?

Barmar Over a year ago

Other than writing to a file, I don't think there's a way. A process can't modify variables in another process directly. Either you use files or a pipe.

user1600936 Over a year ago

I guess using posix IPC would be a way, but that would make the code too complicated. I just want something fast and easy.

user1600936 Over a year ago

I've decided to implement the whole script functionality in python itself, with a minimal wrapper bash script. Anyway, thanks for your help. I really appreciate it.

Collectives™ on Stack Overflow

Passing python variable to linux shell

1 Answer 1

4 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

4 Comments

Your Answer

Sign up or log in

Post as a guest

Related