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Return the output of an eval function

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Jesse McMullen
Jesse McMullen 2015-10-13
评论： Walter Roberson 2015-10-13
I am trying to read the status of an external program that I call from a matlab function. The program is called testConn.exe. I call the program like this:
commandSTR = ['!testConn upload ' ipAddress ' testLink];
eval(commandStr);
when I run the function everything works and I see a status message from testConn in the command window with a status message like:
exit status 0 (No errors)
or
exit status 8 (No connection)
My question is how do I capture those status returns so that I can use them for error control? I should add that when I try something like
a = eval(commadSTR);
I get an error from matlab saying unexpected matlab operator; Is there an alternative to the eval function?
Thanks,
Jesse

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回答（1 个）

Geoff Hayes
Geoff Hayes 2015-10-13
Jesse - perhaps try using system. You may be able to do something like
status = system(commandSTR);
which may capture the exit status of the command.

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