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please advice how to print the hostname ( NODE100 ) from the tnsnames.ora file by awk or sed

I mean I want to get each hostname after

    "HOST =" or "HOST=" or "HOST        =" etc


       (ADDRESS = (PROTOCOL = TCP)(HOST = NODE100 )(PORT = 1521))
       (SERVICE_NAME = PLSExtProc)
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up vote 2 down vote accepted
 perl -n -e '/HOST *= *([^ )]+)/ && print "$1\n"' tnsnames.ora
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