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https://github.com/yibn2008/find-process

find process by port/pid/name etc.
https://github.com/yibn2008/find-process

cli find-process port process

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find process by port/pid/name etc.

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# find-process

[![Node.js CI](https://github.com/yibn2008/find-process/actions/workflows/nodejs.yml/badge.svg)](https://github.com/yibn2008/find-process/actions/workflows/nodejs.yml)
[![js-standard-style](https://img.shields.io/badge/code%20style-standard-brightgreen.svg)](http://standardjs.com/)

With find-process, you can:

- find the process which is listening specified port
- find the process by pid
- find the process by given name or name pattern

We have covered the difference of main OS platform, including **Mac OSX**, **Linux**, **Windows**
and **Android** (with [Termux](https://termux.com)).

## CLI

Install find-process as a CLI tool:

```sh
$ npm install find-process -g
```

Usage:

```sh

Usage: find-process [options]

Options:

-V, --version output the version number
-t, --type find process by keyword type (pid|port|name)
-p, --port find process by port
-h, --help output usage information

Examples:

$ find-process node # find by name "node"
$ find-process 111 # find by pid "111"
$ find-process -p 80 # find by port "80"
$ find-process -t port 80 # find by port "80"

```

Example:

![image](https://user-images.githubusercontent.com/4136679/62670202-f49a6b00-b9c4-11e9-8692-7003c6c31a8a.png)

## Node API

You can use npm to install:

```sh
$ npm install find-process --save
```

Usage:

```javascript
const find = require('find-process');

find('pid', 12345)
.then(function (list) {
console.log(list);
}, function (err) {
console.log(err.stack || err);
})
```

## Synopsis

```
Promise find(type, value, [options])
```

**Arguments**

- `type` the type of find, support: *port|pid|name*
- `value` the value of type, can be RegExp if type is *name*
- `options` this can either be the *object* described below or *boolean* to just set strict mode
- `options.strict` the optional strict mode is for checking *port*, *pid*, or *name* exactly matches the given one. (on Windows, `.exe` can be omitted)
- `options.logLevel` set the logging level to [`trace|debug|info|warn|error`](https://github.com/pimterry/loglevel#documentation). In practice this lets you silence a netstat warning on Linux.

**Return**

The return value of find-process is Promise, if you use **co** you can use `yield find(type, value)` directly.

The resolved value of promise is an array list of process (`[]` means it may be missing on some platforms):

```
[{
pid: ,
ppid: [parent process id],
uid: [user id (for *nix)],
gid: [user group id (for *nix)],
name: ,
bin: ,
cmd:
}, ...]
```

## Example

Find process which is listening port 80.

```javascript
const find = require('find-process');

find('port', 80)
.then(function (list) {
if (!list.length) {
console.log('port 80 is free now');
} else {
console.log('%s is listening port 80', list[0].name);
}
})
```

Find process by pid.

```javascript
const find = require('find-process');

find('pid', 12345)
.then(function (list) {
console.log(list);
}, function (err) {
console.log(err.stack || err);
});
```

Find all nginx process.

```javascript
const find = require('find-process');

find('name', 'nginx', true)
.then(function (list) {
console.log('there are %s nginx process(es)', list.length);
});
```

Find all nginx processes on Linux without logging a warning when run as a user who isn't root.

```javascript
const find = require('find-process');

find('name', 'nginx', {strict: true, logLevel: 'error'})
.then(function (list) {
console.log('there are %s nginx process(es)', list.length);
});
```
## Contributing

We're welcome to receive Pull Request of bugfix or new feature, but please check the list before sending PR:

- **Coding Style** Please follow the [Standard Style](https://github.com/feross/standard)
- **Documentation** Add documentation for every API change
- **Unit test** Please add unit test for bugfix or new feature

## License

[MIT](LICENSE)