[SOLVED] Activate Virtual Environment in tmux session created by Shell file

Issue

I have written a shell script which should ideally create a tmux session and activate virtual environment in it. But it does not activate it after creating tmux session. Here is the code snippet:

cd /home
cd Portals/
tmux new-session -d -s devgeo 
source activate.sh

And this is my activate.sh file

source "venv/bin/activate"

What am I doing wrong. Can anyone help me out?

Solution

You are executing source activate.sh in your current shell, not in the shell running in your newly created tmux session. Use the send-keys command to send that command to the shell, as if you had typed it yourself.

tmux new-session -c /home/Portals -d -s devgeo
tmux send-keys -t devgeo:1 "source activate.sh" C-m

(The -c option lets you set the working directory of the new session without having to change the working directory of your current shell.)

Answered By - chepner