2012/8/22 Philip TAYLOR <P.Taylor at rhul.ac.uk>: > What is the reason for this, Akira-san ? The two normal environment > variables controlling the location of temporary files are "TEMP" and > "TMP"; from where does "TMPDIR" originate ? Posix. https://en.wikipedia.org/wiki/TMPDIR https://en.wikipedia.org/wiki/Temporary_folder Best Martin