A problem about the lost of ' when I start matlab function using command with string as input argument.

I have a function called CMDEntryExitSuperColoc, with a file path string as input.

In the 1st attempt, I could run this function immediately as a new instance of Matlab by input following into command window:

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system('matlab -r CMDEntryExitSuperColoc(''D:\QMDownload\SuperColocParaImport1.txt'')')
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In a 2nd attempt, I need automatically restart computer and run this function by SchTasks. I do it as follows:

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taskname = 'SuperColocRescue';
runfile = ['C:\Program Files\MATLAB\R2016a\bin\matlab.exe -nosplash -nodesktop -minimize -r CMDEntryExitSuperColoc(''D:\QMDownload\SuperColocParaImport1.txt'')'];
frequency = 'ONCE';
starttime = '21:45';
system(['schtasks /create /tn "',taskname,'" /tr "',runfile,'" /sc ',frequency,' /st ',starttime,' /f']);
!shutdown  /f /r /t 1
%%%%%%%%%%

This is what I got:

%%%%%%%%%%
To get started, type one of these: helpwin, helpdesk, or demo.
For product information, visit www.mathworks.com.

   CMDEntryExitSuperColoc(D:\QMDownload\SuperColocParaImport1.txt)
                            |
  Error: Unexpected MATLAB operator.

%%%%%%%%%%

It seems that the ' in the system('matlab... command works, and the function execute directly and siilently without the explicit command information showing on scrren, But the system(['schtasks... commands has a additional interpration procedure as indicated by the explicit CMDEntryExitSuperColoc(D:\QMDownload\SuperColocParaImport1.txt) in the command windows once initialized. However, the ' was lost, and it is no longer a string.

Dose the ' loss caused by Matlab or Windows Task scheduler?

Is there a smart way to input strings without the use of ' with system(['schtasks... command?

Just now I come up with an idea. Convert the path string to numbers, and use,this number as input to avoid ' useage. Then inside the function convert back to string. How to do it？

[dpb]

Dunno, haven't played at that level for too long...I forget a lot of the ploys! :(

I do note that you don't have the double quotes ("} around the program filename which has embedded blank (an abomination shouldn't allow, but...) in the 'Program Files' subdir. I'd fix that first and see if that's causing any grief and other symptoms might go away (or at least change).

Will your scheduler accept input from a file? That might simplify things some as well.

[raym]

I have '' '' in the last second lines, so the blank is not worry. Earlier if I do not have '', its exactly what you say. Next I may generate a bat or vbs and schedule it instead.

[raym]

Even if i use matlab to replace the path, the results is the same. ' was lost

Answer 1

[raym]

Solved by using the ASCII number matrix as input: such as CMDEntryExitSuperColoc([23,54,76,98,23,46,68,89,23])

mfileFolderMat = uint8(mfileFolder);
mfileFolderAscListStr = '';
                  for i = 1 : length(mfileFolderMat)
                      mfileFolderAscListStr = [mfileFolderAscListStr,num2str(mfileFolderMat(i)),','];
                  end
mfileFolderAscListStr(end) = '';
mfileFolderAscListStr = ['[',mfileFolderAscListStr,']'];
runfile = ['C:\Program Files\MATLAB\R2016a\bin\matlab.exe -nosplash -nodesktop -minimize -r CMDEntryExitSuperColoc(',mfileFolderAscListStr,')'];

function CMDEntryExitSuperColoc(mfileFolder)

if ~nargin   
    paraFolder = uigetdir('','Choose a folder containing only your parameter text files');
else

      if ischar(mfileFolder)
          paraFolder = mfileFolder;
      elseif isnumeric(mfileFolder)
          paraFolder = char(mfileFolder);
      end
  end

...
end

Answer 2

[Walter Roberson]

system('matlab -r CMDEntryExitSuperColoc(''''D:\QMDownload\SuperColocParaImport1.txt'''')')

[raym]

As I said,

system('matlab...
already works. 
The loss of ' only take place for:

system(['schtasks....

And even for

system(['schtasks..., 
I tried double the '','''', they just do not work.
No matter hoe many ' you use, all of them will be lost after schtasks.