{"items": [{"author": "Al", "source_link": "https://www.facebook.com/jefftk/posts/181290825305000?comment_id=181334945300588", "anchor": "fb-181334945300588", "service": "fb", "text": "we used to use this as an old testing trick to create progressively larger files for stress testing.   Easier to have the file system do it than open for edit, copy, paset, save, close.", "timestamp": "1327768509"}, {"author": "Andrew", "source_link": "https://www.facebook.com/jefftk/posts/181290825305000?comment_id=181365818630834", "anchor": "fb-181365818630834", "service": "fb", "text": "Yep. Gnu cat isn't checking for append only, so \"cat a > a\" will produce the same effect.  Also note that in this context, device is distinguishing \"file system,\" and the single device number here is usually thought of as a major/minor device number pair.  So multiple file systems on a single disk look like different devices.", "timestamp": "1327772652"}]}