Sorry, I thought it was just complaining without doing more harm. But actually, if the /tmp filesystem is not writeable, mktemp fails and TEMPFILE is empty. Calling cat with the empty argument makes cat wait for input on stdin.
Sorry, I thought it was just complaining without doing more harm. But actually, if the /tmp filesystem is not writeable, mktemp fails and TEMPFILE is empty. Calling cat with the empty argument makes cat wait for input on stdin.