---
title: "Usage"
description: "How to manage you secrets with Infisical's CLI?"
---
Prerequisite: [Install the CLI](/cli/overview)
## Authenticate
To use the Infisical CLI in your development environment, you can run the command below.
This will allow you to access the features and functionality provided by the CLI.
```bash
infisical login
```
To use Infisical CLI in environments where you cannot run the `infisical login` command, you can authenticate via a
Infisical Token instead. Learn more about [Infisical Token](/documentation/platform/token).
## Initialize Infisical for your project
```bash
# navigate to your project
cd /path/to/project
# initialize infisical
infisical init
```
## Inject environment variables
```bash
# inject environment variables into app
infisical run -- [your application start command]
```
Custom aliases can utilize secrets from Infisical. Suppose there is a custom alias `yd` in `custom.sh` that runs `yarn dev` and needs the secrets provided by Infisical.
```bash
#!/bin/sh
yd() {
yarn dev
}
```
To make the secrets available from Infisical to `yd`, you can run the following command:
```bash
infisical run --command="source custom.sh && yd"
```
View all available options for `run` command [here](./commands/run)
## Examples:
```bash
# example with node
infisical run -- node index.js
# example with node (nodemon)
infisical run -- nodemon index.js
# example with node (nodemon) pulling in secrets from test environment
infisical run --env=test -- nodemon index.js
# example with flask
infisical run -- flask run
```