Hi,

try:

sed -n '/^start/,/^end/{/^start\|^end/!{p}}' testfile

where testfile is your file to search and start and end are the strings delimiting your pattern. This command will search every piece of text between a line starting with start and a line starting with end, inside this pattern it will print every line which doesn't start with "start" or "end".

HTH

Chris