Dear Members,
I have a huge file generated by the command 'whois' for hundred of IPs. Each section in the file starts with [Querying whois

I want to extract those lines which start with any of these words: [Querying whois, OrgName, NetRange, inetnum, descr, owner, Country in that section.

Input:

[Querying whois.XJHIOUIIOOPIOP]


OrgName: University of C
OrgID: U1
Address: OIT
Address: NH
City: BC
StateProv: XY
PostalCode: 000000
Country: MN

NetRange: XXX.YYY.M.N - XXX.YYY.M.Q
CIDR: LMANERIE
NetName: UC


[Querying whois.ABCE.TSD]

% Rights restricted by copyright.
% See

% Note: This output has been filtered.
% To receive output for a database update, use the "-B" flag


inetnum: XXX.YYY.M.N - XXX.YYY.M.Q
netname: NET-C
descr: HB
descr: The University
country: PQ
admin-c: TYE
tech-c: SDF
status: FGRG
mnt-by: FSDGFG
source: FGDFSG

role: OPRROKROTR
address: The University
address: DJFIEJRE
address: DIJAIRJEJ
address: EIREROERE

Required output:

[Querying whois.BUHIOUJIOU]
OrgName: HHHHHHHHHH (May or may not present)
NetRange:TTTTTTTTT (May or may not present)
inetnum: FTYFYYYUII (May or may not present)
descr: HIJKJKLLKL (It will be better if only first occurrence)
owner: JHKJOJOIPI (May or may not present)
Country: OIOPOPOP (1st occurrence)

Thanking you
With regards