I'm calling an.exe from R using system('script.exe object'). I get Warning: running command had status 127.

Apr 10, 2011 Dear All, Now we are going to see how to install wgrib and grib2ctl in our linux machine. Step 1: First of we need to install GRADS http://grads.iges.org. Wgrib.c is known to compile and install correctly with Geo::ReadGRIB on all common platforms. See the CPAN Testers reports for this module for details. Wgrib.exe creates a file called wgrib.tmp.XXXXXXXXX in the local directory where the X's are random chars.

I know it means the.exe file has not been found. I'm on windows. When I use shell instead of system it works like a charm. However, I am designing a Shiny application that will be deployed in a Linux environment (shinyapps.io).

This is why I need to use system. EDIT On Windows, it works with system(paste('cmd.exe /c', 'script.exe object'), intern = FALSE, wait = TRUE) as suggested. Usmle World Step 2 Cs Free Download.

But not when I deploy the app (on Linux). HINT Locally on Windows, if I replace system with system2: system2(paste('cmd.exe /c', 'script.exe object'), wait = TRUE), it raises the status 127 warning and the output is exactly the same as in my deployed app on Linux.

It's tough to create a reproducible example here but if needed I can try. Please tell me.

Context: basically the.exe is a black box (compiled C++ code) that takes a.txt file as input and outputs another.txt file. I am using R to dump the.txt file to the current working directory, then read back in the.txt file generated by the.exe (created in the current working directory, where the.exe file is stored). The problem actually stemmed from the fact that.exe files are executables for Windows only.

It does not work out of the box on Linux environments (you can use WINE but in my case it is not possible because I am calling the executable from within R, I don't have any sudo rights or anything on the virtual machine used by the host of my app). So I compiled the c++ code I had using g++ on a Linux virtual machine and used the.out file rather than the.exe. Then in my R script I just needed these two calls: system('chmod a+x script.out') # to make Linux understand that the file is an executable system('./script.out object') # to run the script.