sed: Can't open /usr/web/plan9/sources.html --rw-rw-r-- glenda sys 4298 Dec 11 1999 arith3.c --rw-rw-r-- glenda sys 3735 Dec 11 1999 matrix.c --rw-rw-r-- glenda sys 318 Oct 23 2002 mkfile --rw-rw-r-- glenda sys 1355 Jan 31 2013 qball.c --rw-rw-r-- glenda sys 5707 Dec 11 1999 quaternion.c --rw-rw-r-- glenda sys 1995 Dec 11 1999 transform.c --rw-rw-r-- glenda sys 4716 Dec 11 1999 tstack.c sed: Can't open /usr/web/plan9/sources.html