create venv in current directory or activate venv is present

venv.sh

#!/bin/bash

# Define the name for the virtual environment
venv_name="venv"

# Check if the virtual environment already exists
if [ -d "$venv_name" ]; then
    echo "Activating existing virtual environment..."
    source "$venv_name/bin/activate"
else
    echo "Creating and activating a new virtual environment..."
    python3 -m venv "$venv_name"
    source "$venv_name/bin/activate"
fi