Posted Sep 30, 2013 9:21 UTC (Mon) by gowen (guest, #23914)
In reply to: 30 years of GNU by marcH
Parent article: 30 years of GNU
M-/ is your friend.
You can, of course rebind TAB to complete-filename and skip all the auto-completion. Use "help bind".
It's unfortunate you couldn't find it in the documentation, but its more unfortunate that your response to this was ranting about it on the internet, as if your opinion were the only sane/valid one.