applying unix commands in matlab

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artsci4 2013-8-14

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I have been trying to apply unix commands in the MATLAB environment but it is not working. For example, if I enter this simple command to display the environment variable PATH, the following is the output:

[status, cmdout]=unix('echo $PATH')

status =

cmdout =

$PATH

When I apply this same command in cygwin, it gives me a long output pointing to the correct directory. What do I need to do to fix this?

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artsci4 2013-8-14

When I apply

[status, cmdout] = unix('printenv SHELL')

cmdout stores 'printenv' is not recognized as an internal or external command, operable program or batch file.

Same with applying: [status, cmdout]=unix('env | grep SHELL')

then it says 'env' is not recognized...

I am using Windows 7. And the MATLAB version is R2012b.

Daniel Shub 2013-8-14

I don't have the documentation in front of me, but I am pretty sure the MATLAB UNIX command is not magically and does not give you access to UNIX from a Windows machine.

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Walter Roberson 2013-8-14

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在 MATLAB Online 中打开

The unix() command does not deliberately pass the command to a Unix command shell. The unix() command and system() command and dos() command are identical (or very nearly so), and all three of them pass the command to the "system shell". Which, on MS Windows, is "cmd.com" or "cmd.exe" or whatever the 64 bit equivalent name is.

If I recall old MS Windows information properly,

system('print PATH')

Note: if you are calling to the system just to look at environment variables, then instead use MATLAB's getenv()

getenv('PATH')