grep version is 2.10, and it does not respond anything, even on a small set of small files, while the same line on another Ubuntu machine works fine where grep version is 2.16...
The command is:
grep -r "myVariable"
Instead of returning nothing, or some file names and lines, like this:
path/to/file.c: myVariable++; path/to/file2.c: int myVariable;
The command shell stays busy and I have to halt it using
What is the problem or how do I investigate it?