title: How to make a file appear to 'ls' in xv6 QEMU?
body: <p>I'm messing around with xv6 in QEMU, and I made a new file in the directory I'm in, and when I'm in QEMU and type <code>ls</code> the file isn't listed.  In fact, lots of files aren't listed, and I can't figure out why it lists the ones it does.  It seems to only list compiled <code>.c</code> files, and for some reason a README, but not the compiled <code>.c</code> file I just made.</p>