*** title: Newman command reference updated: 2025-10-03T00:00:00.000Z topictype: reference max-toc-depth: 2 ---------------- Use Newman's command line options to customize your collection runs. You can use options to set up a collection run, configure request delays and timeouts, specify SSL details, and more. When you run a collection iteratively, you can [specify different data sets and variables](#data-file-example) for each iteration. After a run finishes, Newman exits with a [status code](#exit-status) that you can pass to your continuous integration (CI) tool. To use options, add them to the `newman run` command after you [specify the collection file or URL](/docs/collections/using-newman-cli/installing-running-newman/#run-a-collection-with-newman): ```bash newman run my-collection.json [options] ``` To view a list of available options for Newman, run the following command: ```bash newman run -h ``` ## Basic options | Option | Details | | :---------------- | :------------------------- | | `-h`, `--help` | Output usage information. | | `-v`, `--version` | Output the version number. | ## Setup options | Option | Details | | :--------------------------------- | :----------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | `-e`, `--environment [file\|URL]` | Specify the file path or URL of environment variables. | | `-g`, `--globals [file\|URL]` | Specify the file path or URL of global variables. | | `-d`, `--iteration-data [file]` | Specify the local file path to a data file (JSON or CSV) to use for each iteration. To learn more, see [Data file example](#data-file-example). | | `-n`, `--iteration-count [number]` | Specify the number of times for the collection to run. Use with the iteration data file. | | `--folder [folderName]` | Specify a folder to run requests from. You can specify more than one folder by using this option multiple times, specifying one folder for each time the option is used. | | `--working-dir [path]` | Set the path of the working directory to use while reading files with relative paths. Defaults to the current directory. | | `--no-insecure-file-read` | Prevents reading of files located outside of the working directory. | | `--export-environment [path]` | The path to the file where Newman will output the final environment variables file before completing a run. | | `--export-globals [path]` | The path to the file where Newman will output the final global variables file before completing a run. | | `--export-collection [path]` | The path to the file where Newman will output the final collection file before completing a run. | | `--postman-api-key [api-key]` | The [Postman API key](/docs/developer/postman-api/authentication/) used to load resources using the Postman API. | ## Request options | Option | Details | | :--------------------------- | :------------------------------------------------------------------------------------ | | `--delay-request [number]` | Specify a delay (in milliseconds) between requests. | | `--timeout [number]` | Specify the time (in milliseconds) to wait for the entire collection run to complete. | | `--timeout-request [number]` | Specify the time (in milliseconds) to wait for requests to return a response. | | `--timeout-script [number]` | Specify the time (in milliseconds) to wait for scripts to complete. | {/* vale postman-style-guide.Headings = NO */} ## SSL options {/* vale postman-style-guide.Headings = YES */} | Option | Details | | :------------------------------------- | :--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | `--ssl-client-cert [path]` | The path to the public client certificate file. Use this option to make authenticated requests. | | `--ssl-client-key [path]` | Optionally, you can add the path to the private client key that verifies certificate ownership. | | `--ssl-client-passphrase [passphrase]` | Optionally, you can add a secret passphrase to protect the private client key. | | `--ssl-client-cert-list [path]` |

The path to the configuration JSON file containing the SSL client certificate list. Use this option to set several SSL client certificates according to a URL or hostname. To learn more, see [an example client certificate list](https://github.com/postmanlabs/newman/blob/develop/examples/ssl-client-cert-list.json).

This option has a higher priority over the `--ssl-client-cert`, `--ssl-client-key`, and `--ssl-client-passphrase` options. If there is no URL match in the SSL client certificate list, these options are used instead.

| | `--ssl-extra-ca-certs [path]` | The path to the file that has one or more trusted CA certificates in PEM format. You can use this option when you don't want to use the [`--insecure` option](#output-options). | ## Output options | Option | Details | | :-------------------------------------------------- | :------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | `--color [value]` | Specify the color of the CLI output: `on`, `off`, or `auto` (default). | | `--verbose` | Show detailed information of the collection run and each request sent. | | `--silent` | Prevent Newman from showing CLI output. | | `-x`, `--suppress-exit-code` | Specify whether to override the default exit code for the current run. Continue running tests even after a failure, but exit with `code=0`. To learn more, see [Exit status](#exit-status). | | `--disable-unicode` | Turn off Unicode text encoding. When supplied, all symbols in the output will be replaced by their plain text equivalents. | | `-r [reporter-name]`, `--reporters [reporter-name]` | Generate a report about the current collection run. Specify one or more reporter names: `cli` (default when using Newman as a CLI), `json`, `junit`, `progress`, and `emojitrain`. Specify more than one reporter name as a comma-separated list, for example, `-r cli,json`. Learn more about [using reporters with Newman](/docs/collections/using-newman-cli/newman-built-in-reporters/). | ## More configuration options {/* vale postman-style-guide.Vocab = NO */} | Option | Details | | :--------------------------------------------------------------------- | :----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | `--bail [optionalModifiers]` |

Stops the collection run when a test script fails.

Optionally, you can add modifiers to this option: `folder` and `failure`. You can add `folder` to skip the entire collection run if an invalid folder was specified using the `--folder` option, or an error was encountered in general. You can add `failure` to stop an entire collection run (after completing the current test script) when a test fails.

| | `-k`, `--insecure` | Turn off SSL verification checks, and allow self-signed SSL certificates. | | `--ignore-redirects` | Turn off automatic following of `3XX` redirect responses. | | `--cookie-jar [path]` | Specify the file path for a JSON Cookie Jar. Uses `tough-cookie` to deserialize the file. | | `--export-cookie-jar [path]` | The path to the file where Newman will output the final cookie jar file before completing a run. Uses `tough-cookie` to serialize the file. | | `--global-var "[global-variable-name]=[global-variable-value]"` | Specifies global variables on the command line, in a key=value format. Multiple global variables can be added by using `--global-var` multiple times, for example, `--global-var "color=blue" --global-var "pet=cat".` | | `--env-var "[environment-variable-name]=[environment-variable-value]"` | Specifies environment variables in a key=value format on the command line. You can add multiple environment variables using `--env-var` multiple times, for example: `--env-var "color=blue" --env-var "pet=cat"`. | {/* vale postman-style-guide.Vocab = YES */} ## Exit status By default, Newman exits with a status code of `0` if everything runs as expected without any exceptions. You can configure your continuous integration (CI) tool to pass or fail a build based on Newman's exit codes. To override the default exit code for the current run, use `-x` or `--suppress-exit-code` option. Use the `--bail` option to make Newman stop a run if it encounters a test case error with a status code of `1`. This status code can then be used by your CI tool or build system. For example: ```bash newman run my-collection.json -e dev-environment.json --bail ``` ## Data file example To use a different set of data or variables for each iteration in a collection run, use the `-d` option to specify a JSON or CSV file. The following example shows a JSON data file for a run with two iterations, with each iteration using different values for a set of variables. ```json [{ "url": "http://127.0.0.1:5000", "user_id": "1", "id": "1", "token_id": "123123", }, { "url": "http://postman-echo.com", "user_id": "2", "id": "2", "token_id": "899899", }] ``` To run the collection, use the `-d` option and specify the data file. For example: ```bash newman run my-collection.json -d data-file.json ``` The following example shows the same data formatted in a CSV file. ```bash url, user_id, id, token_id http://127.0.0.1:5000, 1, 1, 123123123 http://postman-echo.com, 2, 2, 899899 ``` To learn more about formatting data files for collection runs, see [Run collections using imported data](/docs/collections/running-collections/working-with-data-files/).