Arduino - YunProcessExitValue

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Bridge : Process Class

## exitValue()

#### Description

Returns the exit value (aka return code) of a process that was running. Used by run() and runShellCommand() to return the status of the process that the user has launched.

`exitValue()` returns a 0 if the process is has completed correctly.

If an error occurred during the process the exit value will different than 0. There isn't a standard definition for the return code, it depends on the process. Refer to the documentation of the process to know what the code means.

#### Syntax

- Process.exitValue()

#### Parameters

none

#### Returns

unsigned int. 0 if the process completed correctly. Any value other than 0 means an error occurred during the process. There isn't a standard for the return code, depends on the process you have run.

#### See also

- run()
- runShellCommand()
- addParameter()
- begin()
- runAsynchronously()

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The text of the Arduino reference is licensed under a Creative Commons Attribution-ShareAlike 3.0 License. Code samples in the reference are released into the public domain.

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