﻿---
title: Override configuration settings at the command line
description: You can override any configuration setting from the command line by using flags: You can specify multiple overrides. Overrides are applied to the currently...
url: https://www.elastic.co/elastic/docs-builder/docs/2407/reference/beats/filebeat/override-filebeat-config-settings
---

# Override configuration settings at the command line
<note>
  If you’re running Filebeat as a service, you can’t specify command-line flags. To specify flags, start Filebeat in the foreground.
</note>

You can override any configuration setting from the command line by using flags:
<definitions>
  <definition term="-E, --E "SETTING_NAME=VALUE"">
    Overrides a specific configuration setting.
  </definition>
  <definition term="-M, --M "VAR_NAME=VALUE"">
    Overrides the default configuration for a module.
  </definition>
</definitions>

You can specify multiple overrides. Overrides are applied to the currently running Filebeat process. The Filebeat configuration file is not changed.

## Example: override configuration file settings

The following configuration sends logging output to files:
```sh
logging.level: info
logging.to_files: true
logging.files:
  path: /var/log/filebeat
  name: filebeat
  keepfiles: 7
  permissions: 0640
```

To override the logging level and send logging output to standard error instead of a file, use the `-E` flag when you run Filebeat:
```sh
-E "logging.to_files=false" -E "logging.to_stderr=true" -E "logging.level=error"
```


## Example: override module settings

The following configuration sets the path to Nginx access logs:
```yaml
- module: nginx
  access:
    var.paths: ["/var/log/nginx/access.log*"]
```

To override the `var.paths` setting from the command line, use the `-M` flag when you run Filebeat. The variable name must include the module and fileset name. For example:
```sh
-M "nginx.access.var.paths=[/path/to/log/nginx/access.log*]"
```

You can specify multiple overrides. Each override must start with `-M`.
For information about specific variables that you can set for each fileset, see the documentation under [Modules](https://www.elastic.co/elastic/docs-builder/docs/2407/reference/beats/filebeat/filebeat-modules).