I am at my wits end on this question. I feel like the answer is
probably simple but it has me beat.
I have a list of machines and IP addresses. The combination,
$machine and $IPAddress is never duplicated in the list. However,
$IPAddress may be duplicated and $machine may be duplicated.
For example:
m001ws 192.168.20.2
m002ws 192.168.20.4
m003ws 192.168.20.6
m003ws 192.168.20.10
m004ws 192.168.20.9
m005ws 192.168.20.20
m006ws 192.168.20.12
m009ws 192.168.20.12
I want to find m003ws with its two IP addresses
m003ws 192.168.20.6
m003ws 192.168.20.10
and 192.168.20.12 with its two machines.
m006ws 192.168.20.12
m009ws 192.168.20.12
I also have a longer record consisting of about 9 fields where I want
to know if there is a duplication within one of the fields. For example
any time a userid appeared in more than one record.
I was thinking that these are basically the same problem but I can't
seem to find any examples on the web. I would appreciate any help.
By the way, in the real problems I am looking at several thousand
'records' and I need to run these reports once a day.
Dan
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