android_mt6572_jiabo/external/busybox/testsuite/tar/tar-extracts-to-standard-output

echo foo > foo
tar cf foo.tar foo
cat foo.tar | busybox tar Ox | cmp foo -
	`echo foo > foo`
	`tar cf foo.tar foo`
	`cat foo.tar \| busybox tar Ox \| cmp foo -`