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Say that I have two lists of emails, that look something like,,,

and I need to put them together into one big list while eliminating duplicates, so it will look like,,,

these lists are large (50+), so doing it manually requires a lot of time.

The problem is, that I need a farily regular user to do this, so it can't involve any programming. An ideal way would be for him to just paste those lists, click once and get the resulting list.

Are there any utilities that can do this easily? I can imagine MS Excel doing something like this, but I don't really know how to approach it. If you have any solution not involving Excel, I'll gladly accept it.

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try adding them to address book of some mailing client – Shekhar Sep 19 '11 at 9:40
up vote 4 down vote accepted

If you have any solution not involving Excel, I'll gladly accept it.

$ cat list1

$ cat list2

$ cat list1 list2 | sort -u
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Using Microsoft Log Parser and multiple lists with a pattern of list*.csv, with a header line of "name" and an extension of .csv

logparser -i:csv -o:csv "Select distinct name into unique_names.csv from list*.csv"
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