Environment & Shell Customization (Aliases/Functions/.Bashrc)

Stop your shell from forgetting your directory context when you switch projects

🧩 The Challenge

You know that feeling when you’re juggling three different Git repos and keep landing in the wrong one after opening a new tab? I’ve burned so much time working on a config file only to realize I was editing the version in my staging directory instead of prod.

💡 The Fix

Use a shell function to auto-run a local directory config file whenever you cd into a specific project folder. It keeps your environment variables and aliases scoped strictly to where you are actually working.

chpwd() {
if [ -f .envrc ]; then
source .envrc
fi
}

⚙️ Why It Works

Adding this hook to your shell tells the terminal to check for a project-specific script every single time you change directories. It effectively creates a per-directory sandbox for your environment.

🚀 Pro-Tip: Toss an alias in that .envrc to override your global git user email for that specific client repo.

Linux Tips & Tricks | © ngelinux.com | 7/29/2026