Arguments to executable file

I am working on a conversion of IDL code to Matlab.

IDL --= spawn, dir_progs+'file.exe  -M' + filedats+ '.dat -NMOD 5 -R -PARR' + dir_prog+'datafile.dat',/log_output

-M,-R,-PARR are the commands to control how it executes.

dir_progs - directory of file.

Can anybody help me to execute this code into MATLAB?

Thanks in advance.

Answer 1

[Walter Roberson]

cmd = sprintf('"%s" -M"%s.dat" -NMOD 5 -R -PARR"%s"', fullfile(dir_progs, 'file.exe'), filedats, fullfile(dir_prog, 'datfile.dat'));
[status, output_log] = system(cmd);

Note: it is risky to have a variable named "dir_progs" and another one named "dir_prog" with only the final "s" different between the two -- there is a somewhat high risk of getting the two of them confused or of accidentally typing one when the other was wanted.

I made the string more robust by adding "" around names, in case there happen to be spaces in directory names.

There are some places in the string that I would tend to suspect should have a space separating parts, but it is possible that it is correct without those spaces; it depends on what the program expects.

[Nidhi SRIVASTAVA]

Thanks a lot for the prompt response. Could you please explain what is obtained in the output_log? After running the code, I get a string array. Is it the contents in the .exe file?

[Walter Roberson]

The character vector output_log will contain whatever the .exe wrote out to standard output.