为什么超时不工作linux服务器

Question

I have a executable and I want to run it using timeout. I am using linux server and php. Following is the code i am using

exec("timeout 2s ./exe < input > output");

It just produce output file with no content. But if I remove timeout as below:

exec("./exe < input > output");

then it shows the expected output in my output file.

Why this is happening. Am I using timeout in the right way. How to fix it?

Answer 1

Try to change your command the following way:

exec("timeout 2s ./exe < input > output 2>&1");

It could be that timeout is not on the PATH.