ah, yes, the simple test only had files, no symlinks, hidden files, etc, anything else you might want to distinguish upon in a shell script. But I don't think

ah, yes, the simple test only had files, no symlinks, hidden files, etc, anything else you might want to distinguish upon in a shell script. But I don't think it's too hard to solve this problem. A command which filters should also be able to invert the filter. One example for this is grep -v.