[RndTbl] Command line challenge: trim garbage from start and end of a file.
John Lange
john at johnlange.ca
Wed Nov 10 10:51:09 CST 2010
I have files with the following structure:
garbage
garbage
garbage
output start
.. good data
.. good data
.. good data
.. good data
output end
garbage
garbage
garbage
How can I extract the good data from the file trimming the garbage
from the beginning and end?
The following works just fine but it's dirty because I don't like the
fact that I have to pick an arbitrarily large number for the "before"
and "after" values.
grep -A 999999 "output start" <infile> | grep -B 999999 "output end" > newfile
Can anyone come up with something more elegant?
--
John Lange
www.johnlange.ca
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