I didn't get anywhere new with your advice Andy. Sorry. What am I doing wrong here? llib pianobar | sed -u -f filter.sed sed: invalid option -- u BusyBox v1.6.1 (2010-08-15 19:12:28 BST) multi-call binary Usage: sed [-efinr] pattern [files...]
No, you're not dumb at all. You just have the default "sed" from the mini-linux environment, Busybox. I just grabbed the latest GNU source for a full sed and built it for the n810. Grab it from: www.vsta.org/andy/pickup/n810_sed Probably you shouldn't scribble on top of the Busybox one, just put this one in /usr/local/bin/sed (or /usr/local/bin/gsed to be really defensive) and it definitely has the -u option. Andy