> tmp_file() rlab-181200.1 > tmp_file() rlab-181210.2 > tmp_file() rlab-181218.3 > tmp_file() rlab-181247.4 > load("/usr/local/lib/rlab/rlib/tmp_file.r"); a = tmp_file() ... > load("/usr/local/lib/rlab/rlib/tmp_file.r"); b = tmp_file() a = rlab-181524.1 b = rlab-181524.1