Update .env Variables for All Apps in a Single Directory with One Command

env_updater.sh

#!/bin/bash

# Script to add or update environment variables in Laravel .env files
# Usage: ./env_updater.sh [webapps_directory] [env_key] [env_value]

WEBAPPS_DIR=${1:-"webapps"}
ENV_KEY=$2
ENV_VALUE=$3

# Check if required parameters are provided
if [ -z "$ENV_KEY" ] || [ -z "$ENV_VALUE" ]; then
    echo "Usage: $0 [webapps_directory] [env_key] [env_value]"
    echo "Example: $0 webapps DB_HOST 127.0.0.1"
    exit 1
fi

# Check if webapps directory exists
if [ ! -d "$WEBAPPS_DIR" ]; then
    echo "Error: Directory '$WEBAPPS_DIR' does not exist."
    exit 1
fi

# Find all .env files in the webapps directory and subdirectories
ENV_FILES=$(find "$WEBAPPS_DIR" -name ".env" -type f)

# Check if any .env files were found
if [ -z "$ENV_FILES" ]; then
    echo "No .env files found in '$WEBAPPS_DIR' directory."
    exit 1
fi

# Function to add or update environment variable
update_env_var() {
    local env_file=$1
    local key=$2
    local value=$3

    echo "Processing file: $env_file"

    # Check if the key exists in the file
    if grep -q "^${key}=" "$env_file"; then
        # Update existing key
        sed -i "s|^${key}=.*|${key}=${value}|" "$env_file"
        echo "  Updated: ${key}=${value}"
    else
        # Add new key-value pair
        # Check if file ends with a newline
        if [ "$(tail -c 1 "$env_file" | wc -l)" -eq 0 ]; then
            # File doesn't end with newline, add one first
            echo "" >> "$env_file"
        fi
        echo "${key}=${value}" >> "$env_file"
        echo "  Added: ${key}=${value}"
    fi
}

# Process each .env file
echo "Found $(echo "$ENV_FILES" | wc -l) .env files"
echo "Updating/Adding: ${ENV_KEY}=${ENV_VALUE}"
echo "------------------------"

for env_file in $ENV_FILES; do
    update_env_var "$env_file" "$ENV_KEY" "$ENV_VALUE"
done

echo "------------------------"
echo "Environment variable update complete."

Give Permission

chmod +x ./env_updater.sh

Usage:

./env_updater.sh [webapps_directory] [env_key] [env_value]

Example

./env_updater.sh webapps DB_HOST 127.0.0.1