> ## Documentation Index
> Fetch the complete documentation index at: https://www.1password.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# inject

Inject secrets into a file templated with secret references.

```
op inject [flags]
```

### Flags

```
    --file-mode filemode   Set filemode for the output file. It is ignored without the --out-file flag. (default 0600)
-f, --force                Do not prompt for confirmation.
-i, --in-file string       The filename of a template file to inject.
-o, --out-file string      Write the injected template to a file instead of stdout.
```

[Learn more about secret references.](/cli/secret-references)

You can pass in a config file templated with secret references and receive a
config file with the actual secrets substituted. Make sure to delete the
resolved file when you no longer need it.

[Learn more about loading secrets into config files.](/cli/secrets-config-files)

### Examples

Inject secrets into a config template from stdin:

```
echo "db_password: {{ op://app-prod/db/password }}" | op inject
db_password: fX6nWkhANeyGE27SQGhYQ
```

Inject secrets into a config template file:

```
cat config.yml.tpl
db_password: {{ op://app-prod/db/password }}
```

```
op inject -i config.yml.tpl -o config.yml && cat config.yml
db_password: fX6nWkhANeyGE27SQGhYQ
```

Multiple secrets can be concatenated:

```
echo "db_url: postgres://{{ op://lcl/db/user }}:{{ op://lcl/db/pw }}@{{ op://lcl/db/host }}:{{ op://lcl/db/port }}/{{ op://my-app-prd/db/db }}" | op inject
db_url: postgres://admin:admin@127.0.0.1:5432/my-app"
```

Use variables in secret references to switch between different sets of
secrets for different environments:

```
echo "db_password: op://$env/db/password" | env=prod op inject
db_password: fX6nWkhANeyGE27SQGhYQ
```