sed: Can't open /usr/web/plan9/sources.html --rw-rw-rw- none sys 19 May 13 2015 email --rw-rw-rw- none sys 36 May 13 2015 files --rw-rw-r-- none sys 6113 May 13 2015 gunzip.c --rw-rw-r-- none sys 6035 May 13 2015 gunzip.c.orig --rw-rw-rw- none sys 0 May 13 2015 notes --rw-rw-rw- none sys 276 May 13 2015 readme sed: Can't open /usr/web/plan9/sources.html