How to pass Matlab workspace variable into system command?

50 views (last 30 days)
Saurabh Srivastava
Saurabh Srivastava on 18 Jan 2014
Answered: cui on 2 Jan 2019
I am using a program (wgrib) which is used to read .grb file and it runs in linux environment. This program required filename to read it. Now I want to use this programm using 'system' command in matlab. It works fine when I give the name of file but fails to execute when I give the variable which contains several file name. For ex. it works fine when I use
[u v]=system('wgrib xyz.grb') where wgrib is programm and xyz.grb is file name
But when I give it like
[u v]=system('wgrib filename')
where filename is a matlab variable which contains file name (i.e. xyz,grb), it does not execute and says didn't find file.
Can anyone suggest how to pass matlab variable in system command.

Accepted Answer

Jan on 18 Jan 2014
[u v] = system(['wgrib ', filename])
  1 Comment
Saurabh Srivastava
Saurabh Srivastava on 20 Jan 2014
Dear Jan, Thanks for suggestion but I have already tried it and It did not work. :(

Sign in to comment.

More Answers (2)

Walter Roberson
Walter Roberson on 20 Jan 2014
filename = 'xyz.grb';
[u v]=system( sprintf('wgrib %s', filename) )

cui on 2 Jan 2019
filename = 'xyz.grb';
command = ['wgrib ',filename];
[u v] = system(command)

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!