1*3c47cee5SJilles Tjoelker 2*3c47cee5SJilles TjoelkerT=$(mktemp -d "${TMPDIR:-/tmp}/sh-test.XXXXXXXX") || exit 3*3c47cee5SJilles Tjoelkertrap 'rm -rf "$T"' 0 4*3c47cee5SJilles Tjoelker 5*3c47cee5SJilles Tjoelkerset -C 6*3c47cee5SJilles Tjoelkerecho . >"$T/a" && 7*3c47cee5SJilles Tjoelker[ -s "$T/a" ] && 8*3c47cee5SJilles Tjoelker{ ! true >"$T/a"; } 2>/dev/null && 9*3c47cee5SJilles Tjoelker[ -s "$T/a" ] && 10*3c47cee5SJilles Tjoelkerln -s /dev/null "$T/b" && 11*3c47cee5SJilles Tjoelkertrue >"$T/b" 12