Gary Kline wrote: > My earlier post about deleting the first N lines was answered by > this one-liner site {below}. I wasn't including any > redirection; doing so finally resolved the problem. Now I need > to delete every line from the 19th or so to the last line. > Question one, can anybody explain the following syntax? What do > "P", "D" "ba" represent, in other words? > > > # delete the last 10 lines of a file > sed -e :a -e '$d;N;2,10ba' -e 'P;D' # method 1 > sed -n -e :a -e '1,10!{P;N;D;};N;ba' # method 2 > > > Question two, can sed do its thing inline?
Wouldn't it be easier to use head -n 18 ? _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"