Does anyone know a way to delete rows 6-9 from the below output? I have searched the forum but did not find any thing helpful.

backups01laxint.liuc(s){jsandova}[~]<0>$ nsrjb -v | awk -F' ' '$3>=01{print $0}' | cut -b 1-79 | cat -n
setting verbosity level to `1'
1 slot volume used pool barcode
2 1: intwindows.0005 9% intwindows 010159L2
3 2: intunix.0009 19% intunix 010155L2
4 4: intrman.0002 2% intrman 010395L2
5 24: Cleaning Tape (50 uses left) 000002L1 000002L1
6 *not registered in the NetWorker media data base
7 7 registered volume(s), 7 volumes are less than 80% full.
8 1335 GB estimated capacity, 1278 GB remaining (4% full)
9 Default slot range(s) are 1-23