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Sure, of course, since you can develop portable software that runs on both MacOS and Linux. Be sure to test it on Linux at regular intervals to make sure you haven't unintentionally added something unportable. If you want to use Linux-specific features then you will have more of a hard time. Depending on what it is you do, the program may compile on MacOS ...


If you have already become root you don't need to use sudo again. So in your second example, after the su root just run visudo directly su root visudo


Lets add some Debugging Info, like so: $f = fopen('mmascript.m', 'w'); echo "fopen complete." fwrite($f, "#!/Applications/mma/Contents/MacOS/MathematicaScript -script\n"); echo "fwrite 1 complete." fwrite($f, 'Print[100]'); echo "fwrite 2 complete. fclose($f); echo "close complete." chmod('mmascript.m', 0777); echo "Permissions Successfully Changed." ...

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