sed: Can't open /usr/web/plan9/sources.html --rw-rw-rw- none sys 12 Mar 23 2014 email --rw-rw-rw- none sys 38 Mar 23 2014 files --rw-r--r-- none sys 10069 Mar 23 2014 httpfile.c --rw-rw-r-- none sys 10037 Jul 17 2015 httpfile.c.backup --rw-rw-rw- none sys 10069 Jul 17 2015 httpfile.c.new --rw-rw-r-- none sys 10037 Mar 23 2014 httpfile.c.orig --rw-rw-rw- none sys 0 Mar 23 2014 notes --rw-rw-rw- none sys 60 Mar 23 2014 readme sed: Can't open /usr/web/plan9/sources.html