Home/ Questions/Q 7409147
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-29T06:02:10+00:00

I have a command that compiles test.cpp and is supposed to store output in

  • 0

I have a command that compiles test.cpp and is supposed to store output in the output file. Here is an example of my generated cmd:

g++ tmp/test.cpp -o tmp/test &> tmp/compile.out

when I use system(), it does not work. Even though it creates output file, it still prints everything to the main console window. When I execute it in terminal, it works just fine.

I also tried use popen() and fgets() (just copying the code from here) but same happened. I probably could just fork my process and use freopen or something but I have sockets and multiple threads running in the background. I guess they would be duplicated as well, which is not good.

Any ideas why it may fail?

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    According to the man-page of system, it invokes sh which is the standard bourne shell (not bash, Bourne Again SHell). And the bourne shell doesn’t understand &>. So you might need to use the old style:

    g++ tmp/test.cpp -o tmp/test >tmp/compile.out 2>&1
    • 0