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matlab (Linux)

Start MATLAB program from Linux system prompt

Syntax

matlab
matlab option1 ... optionN

Description

matlab is a Bourne shell script that starts the MATLAB® program from a Linux® system prompt. Here the term matlab refers to this script and MATLAB refers to the program.

The matlab script:

  • Determines the MATLAB root folder, the value returned by the matlabroot function.

  • Processes command-line options, if any.

  • Reads the MATLAB startup file, .matlab7rc.sh.

  • Sets MATLAB environment variables.

example

matlab option1 ... optionN starts MATLAB with the specified startup options.

Alternatively, assign startup options in the MATLAB .matlab7rc.sh Startup File. Modifying the .matlab7rc.sh file defines startup options every time you start MATLAB.

MATLAB uses the Java® Virtual Machine (JVM™) software to run the desktop and to display graphics. The -nojvm option allows you to start MATLAB without the JVM. Using this option minimizes memory usage and improves initial startup speed, but restricts functionality.

Input Arguments

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One or more startup options, specified as strings corresponding to valid startup options from the following tables.

Mode Options

OptionResult
-desktop

Start MATLAB without a controlling terminal. Use this option when you start MATLAB from a window manager menu or desktop icon.

-nodesktop

Run the JVM software without opening the MATLAB desktop. You can use development environment tools by calling them as functions.

Use this option to run in batch processing mode.

If you pipe to MATLAB using the > constructor, the nodesktop option is used automatically.

MATLAB provides a command window-only interface in the desktop environment. On the Home tab, click Layout. Then, under Select Layout, select Command Window Only.

-nojvm

Start MATLAB without the JVM software. Features that require Java software (such as the desktop tools and graphics) are not supported.

Display Options

OptionResult
-noFigureWindows

Disable the display of figure windows in MATLAB.

-nosplash

Do not display the splash screen during startup.

-nodisplay

Start the JVM software without starting the MATLAB desktop. This option does not display X commands. It overrides the DISPLAY environment variable.

-display xDisp

Send X commands to X Window Server display xDisp. This option overrides the DISPLAY environment variable.

Execute MATLAB Script or Function

OptionResult

-r statement

Execute the specified MATLAB statement, specified as a string or as the name of a MATLAB script or function. If statement is MATLAB code, enclose the string with double quotation marks. If statement is the name of a MATLAB function or script, do not specify the file extension and do not use quotation marks. Any required file must be on the MATLAB search path or in the startup folder.

Example: -r "disp(['Current folder: ' pwd])"

Example: -r myscript

Set Initial Working Folder

The initial working folder is the current folder when MATLAB starts. For more information, see MATLAB Startup Folder.

OptionResult

-sd folder

Set the MATLAB startup folder to folder, specified as a string.

Example: matlab -sd "C:\work"

-useStartupFolderPref

Set the MATLAB startup folder to the value specified by the Initial working folder option in the General Preferences panel.

Specify MATLAB Version

OptionResult
v=variant

Start the version of MATLAB in the bin/arch/variant folder instead of the bin/arch folder. arch is the system architecture, the value returned by the computer('arch') function. variant is a string representing a MATLAB version.

Debugging Options

OptionResult

-logfile filename

Copy Command Window output, including error reports, into filename, specified as a string.

Example: -logfile output.log

-n

Display, without starting MATLAB, final values of the environment variables and arguments passed to the MATLAB executable. This option also displays other diagnostic information for use when working with a Technical Support Representative.

-e

Display, without starting MATLAB, all environment variables and their values to standard output. If the exit status is not 0 on return, then the variables and values might not be correct.

-Ddebugger debugopts

Start MATLAB in debug mode. This option uses the debugger program name, debugger, specified as a string, for example, gdb, lldb, or dbx. You can specify the full path to the debugger. This option must be the first option in the matlab command.

Debugger program command-line options, debugopts, specified as a string of valid options for debugger. See your debugger documentation for details. Do not use any other matlab command options when using debugopts.

Do not add a space between D and debugger.

Example: -Dgdb

-jdb portnumber

Enable use of the Java debugger. The Java debugger uses the default portnumber value 4444 to communicate with MATLAB.

The port number is optional. However, to use the Java debugger while running multiple MATLAB sessions, you must specify a port number. The portnumber value must be an integer in the range 0–65535. The integer cannot be reserved or currently in use by another application on your system.

-debug

Display information for debugging X-based problems. Use this option only when working with a Technical Support Representative from MathWorks, Inc.

Use Single Computational Thread

By default, MATLAB uses the multithreading capabilities of the computer on which it is running.

OptionResult
-singleCompThread

Limit MATLAB to a single computational thread.

Disable Searching Custom Java Class Path

OptionResult
-nouserjavapath

Disable use of javaclasspath.txt and javalibrarypath.txt files. For more information, see Specifying Java Startup Options.

OpenGL Library Options

These options control the use of software OpenGL® libraries when MATLAB detects a graphics driver with known issues. For more information, see Graphics Features with OpenGL Requirements.

OptionResult
-softwareopengl

Force MATLAB to start with software OpenGL libraries.

-nosoftwareopengl

Disable auto-selection of OpenGL software.

Specify License File

OptionResult

-c license

Use the specified license file, license, specified as a string, a colon-separated list of license file names, or a port@host entry. For more information, see Understanding License Files in the License Management (Installation, Licensing, and Activation) documentation.

Open Student Version

OptionResult

-student

Open student version of MATLAB.

Help Options

OptionResult
-h

Display startup options without starting MATLAB.

-help

Same as -h option.

Examples

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matlab -nojvm -nodisplay -nosplash
matlab -r "disp(['Current folder: ' pwd])"

Definitions

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