bitburner-src/markdown/bitburner.ns.flags.md

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[Home](./index.md) &gt; [bitburner](./bitburner.md) &gt; [NS](./bitburner.ns.md) &gt; [flags](./bitburner.ns.flags.md)
## NS.flags() method
Parse command line flags.
**Signature:**
```typescript
flags(schema: [string, string | number | boolean | string[]][]): { [key: string]: ScriptArg | string[] };
```
## Parameters
| Parameter | Type | Description |
| --- | --- | --- |
| schema | \[string, string \| number \| boolean \| string\[\]\]\[\] | |
**Returns:**
{ \[key: string\]: [ScriptArg](./bitburner.scriptarg.md) \| string\[\] }
## Remarks
RAM cost: 0 GB
Allows Unix-like flag parsing.
We support 2 forms:
- Short form: the flag contains only 1 character, e.g. -v.
- Long form: the flag contains more than 1 character, e.g. --version.
## Example
```js
export async function main(ns) {
const data = ns.flags([
['delay', 0], // a default number means this flag is a number
['server', 'foodnstuff'], // a default string means this flag is a string
['exclude', []], // a default array means this flag is a default array of string
['help', false], // a default boolean means this flag is a boolean
['v', false], // short form
]);
ns.tprint(data);
}
// [home ~/]> run example.js
// {"_":[],"delay":0,"server":"foodnstuff","exclude":[],"help":false,"v":false}
// [home ~/]> run example.js --delay 3000
// {"_":[],"delay":3000,"server":"foodnstuff","exclude":[],"help":false,"v":false}
// [home ~/]> run example.js --delay 3000 --server harakiri-sushi
// {"_":[],"delay":3000,"server":"harakiri-sushi","exclude":[],"help":false,"v":false}
// [home ~/]> run example.js --delay 3000 --server harakiri-sushi hello world
// {"_":["hello","world"],"delay":3000,"server":"harakiri-sushi","exclude":[],"help":false,"v":false}
// [home ~/]> run example.js --delay 3000 --server harakiri-sushi hello world --exclude a --exclude b
// {"_":["hello","world"],"delay":3000,"server":"harakiri-sushi","exclude":["a","b"],"help":false,"v":false}
// [home ~/]> run example.js --help
// {"_":[],"delay":0,"server":"foodnstuff","exclude":[],"help":true,"v":false}
// [home ~/]> run example.js -v
// {"_":[],"delay":0,"server":"foodnstuff","exclude":[],"help":false,"v":true}
```