understand the `-c` switch on UNIX or `/s /c` on Windows. On Windows,

command line parsing should be compatible with `cmd.exe`.)

* `timeout` {number} (Default: `0`)

stdout or stderr - if exceeded child process is killed (Default: `200*1024`)

* `uid` {number} Sets the user identity of the process. (See setuid(2).)

* `gid` {number} Sets the group identity of the process. (See setgid(2).)

* `callback` {Function} called with the output when process terminates

* `env` {Object} Environment key-value pairs

* `encoding` {string} (Default: `'utf8'`)

* `timeout` {number} (Default: `0`)

stdout or stderr - if exceeded child process is killed (Default: `200*1024`)

* `uid` {number} Sets the user identity of the process. (See setuid(2).)

* `gid` {number} Sets the group identity of the process. (See setgid(2).)

* `callback` {Function} called with the output when process terminates

* `input` {string|Buffer} The value which will be passed as stdin to the

spawned process

- supplying this value will override `stdio[0]`

- `stderr` by default will be output to the parent process' stderr unless

`stdio` is specified

* `env` {Object} Environment key-value pairs

* `uid` {number} Sets the user identity of the process. (See setuid(2).)

* `gid` {number} Sets the group identity of the process. (See setgid(2).)

* `timeout` {number} In milliseconds the maximum amount of time the process

is allowed to run. (Default: `undefined`)

process will be killed. (Default: `'SIGTERM'`)

stdout or stderr - if exceeded child process is killed

* `encoding` {string} The encoding used for all stdio inputs and outputs. (Default: `'buffer'`)

* Returns: {Buffer|string} The stdout from the command

* `input` {string|Buffer} The value which will be passed as stdin to the

spawned process

- supplying this value will override `stdio[0]`

- `stderr` by default will be output to the parent process' stderr unless

`stdio` is specified

* `env` {Object} Environment key-value pairs

* `gid` {number} Sets the group identity of the process. (See setgid(2).)

* `timeout` {number} In milliseconds the maximum amount of time the process

is allowed to run. (Default: `undefined`)

process will be killed. (Default: `'SIGTERM'`)

stdout or stderr - if exceeded child process is killed

* `encoding` {string} The encoding used for all stdio inputs and outputs.

(Default: `'buffer'`)

* `input` {string|Buffer} The value which will be passed as stdin to the

spawned process

- supplying this value will override `stdio[0]`

* `env` {Object} Environment key-value pairs

* `uid` {number} Sets the user identity of the process. (See setuid(2).)

* `gid` {number} Sets the group identity of the process. (See setgid(2).)

* `timeout` {number} In milliseconds the maximum amount of time the process

is allowed to run. (Default: `undefined`)

process will be killed. (Default: `'SIGTERM'`)

stdout or stderr - if exceeded child process is killed

* `encoding` {string} The encoding used for all stdio inputs and outputs.

(Default: `'buffer'`)

added: v0.7.2

-->

The `child.connected` property indicates whether it is still possible to send

and receive messages from a child process. When `child.connected` is `false`, it

added: v0.1.90

-->

Returns the process identifier (PID) of the child process.

* `sendHandle` {Handle}

* `options` {Object}

* `callback` {Function}

When an IPC channel has been established between the parent and child (

i.e. when using [`child_process.fork()`][]), the `child.send()` method can be

added: v6.0.0

-->

Set by calling `.kill()` or `.disconnect()`. Until then, it is `undefined`.

added: v0.8.0

-->

Each new worker is given its own unique id, this id is stored in the

`id`.

added: v0.8.1

-->

True if the process is a master. This is determined

by the `process.env.NODE_UNIQUE_ID`. If `process.env.NODE_UNIQUE_ID` is

added: v0.6.0

-->

True if the process is not a master (it is the negation of `cluster.isMaster`).

<!-- YAML

added: v0.1.101

-->

Uses [`util.inspect()`][] on `obj` and prints the resulting string to `stdout`.

This function bypasses any custom `inspect()` function defined on `obj`. An

<!-- YAML

added: v0.1.104

-->

Starts a timer that can be used to compute the duration of an operation. Timers

are identified by a unique `label`. Use the same `label` when you call

<!-- YAML

added: v0.1.104

-->

Stops a timer that was previously started by calling [`console.time()`][] and

prints the result to `stdout`:

string, it is treated as a raw key with no passphrase. If `private_key` is an

object, it is interpreted as a hash containing two properties:

The `output_format` can specify one of `'latin1'`, `'hex'` or `'base64'`. If

`output_format` is provided a string is returned; otherwise a [`Buffer`][] is

If `private_key` is an object, it is interpreted as a hash object with the

keys:

* `padding` : An optional padding value, one of the following:

* `crypto.constants.RSA_NO_PADDING`

* `crypto.constants.RSA_PKCS1_PADDING`

If `private_key` is an object, it is interpreted as a hash object with the

keys:

* `padding` : An optional padding value, one of the following:

* `crypto.constants.RSA_NO_PADDING`

* `crypto.constants.RSA_PKCS1_PADDING`

If `public_key` is an object, it is interpreted as a hash object with the

keys:

* `padding` : An optional padding value, one of the following:

* `crypto.constants.RSA_NO_PADDING`

* `crypto.constants.RSA_PKCS1_PADDING`

If `public_key` is an object, it is interpreted as a hash object with the

keys:

* `padding` : An optional padding value, one of the following:

* `crypto.constants.RSA_NO_PADDING`

* `crypto.constants.RSA_PKCS1_PADDING`

* `family` {number} - The record family. If present, must be the integer

`4` or `6`. If not provided, both IP v4 and v6 addresses are accepted.

`getaddrinfo` flags. If `hints` is not provided, then no flags are passed to

`getaddrinfo`. Multiple flags can be passed through `hints` by bitwise

`OR`ing their values.

See [supported `getaddrinfo` flags][] for more information on supported

flags.

in an array, otherwise returns a single address. Defaults to `false`.

All properties are optional.

### Error.stackTraceLimit

The `Error.stackTraceLimit` property specifies the number of stack frames

collected by a stack trace (whether generated by `new Error().stack` or

### error.message

The `error.message` property is the string description of the error as set by calling `new Error(message)`.

The `message` passed to the constructor will also appear in the first line of

### error.stack

The `error.stack` property is a string describing the point in the code at which

the `Error` was instantiated.

#### error.code

The `error.code` property is a string representing the error code, which is always

`E` followed by a sequence of capital letters.

#### error.errno

The `error.errno` property is a number or a string.

The number is a **negative** value which corresponds to the error code defined in

#### error.syscall

The `error.syscall` property is a string describing the [syscall][] that failed.

#### error.path

When present (e.g. in `fs` or `child_process`), the `error.path` property is a string

containing a relevant invalid pathname.

#### error.address

When present (e.g. in `net` or `dgram`), the `error.address` property is a string

describing the address to which the connection failed.

#### error.port

When present (e.g. in `net` or `dgram`), the `error.port` property is a number representing

the connection's port that is not available.