Bourne Shell Temporary File Management

tempfiles.sh

# Implements a simple solution for easy creation and
# automatic disposal of temporary files.

TEMPFILE=
TEMPFILES=

get_tempfile() {
	TEMPFILE="`mktemp`"
	test "x$TEMPFILES" = x \
		&& TEMPFILES="$TEMPFILE" \
		|| TEMPFILES="$TEMPFILES:$TEMPFILE"
}

remove_tempfiles() {
	echo "$TEMPFILES" | sed 's/:/\n/g' | while IFS= read -r f; do
		rm -f "$f"
	done
}
trap remove_tempfiles 0 1 2 3 15

# example:

get_tempfile
tmp="$TEMPFILE"