dos (MathScript RT Module Function)

LabVIEW 2012 MathScript RT模块帮助

版本日期:June 2012

产品编号:373123C-0118

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(仅限Windows)

Owning Class: support

Requires: MathScript RT Module (Windows)

Syntax

dos(command)

dos(command, '-echo')

[code] = dos(command)

[code] = dos(command, '-echo')

[code, output] = dos(command)

[code, output] = dos(command, '-echo')

Description

Executes a Windows or DOS command in the current working directory. If you call this function in the LabVIEW Run-Time Engine, LabVIEW executes the command in the directory where you installed the stand-alone application or shared library. This function is similar to the System Exec VI.

Examples

Inputs

Name Description
command Specifies the Windows or DOS command you want to execute. command is a string. Before continuing execution, LabVIEW waits for the operating system to finish executing the command. To direct LabVIEW not to wait for the operating system to finish executing the command, include & at the end of the command string.
'-echo' Directs LabVIEW to display the output in the Command Window of the LabVIEW MathScript Window.

Outputs

Name Description
code Returns the return code of the command.
output Returns the output string of the command.

Details

The following table lists the support characteristics of this function.

Supported in the LabVIEW Run-Time Engine Yes
Supported on RT targets No

Examples

[code, result] = dos('help')

[code, result] = dos('ipconfig', '-echo');

dos('explorer')

Related Topics

system

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