Jason Welsh wrote:
> hrm.. seems like you were missing a }
>
> sort file | awk '{array[$1] += $2;} END { for (i in array) {print i "\t"
> array[i];}}'
>
Oops. Well, it's not vi, it's webmail, so I couldn't check... <g> Thanks.
mark
>
> regards,
>
> Jason
>
>
>
> On 10/25/2017 01:24 PM, m.roth@xxxxxxxxx wrote:
>> Warren Young wrote:
>>> On Oct 25, 2017, at 10:02 AM, Mark Haney <mark.haney@xxxxxxxxxxx>
>>> wrote:
>>>> I have a file with two columns 'email' and 'total' like this:
>>>>
>>>> me@xxxxxxxxxxx 20
>>>> me@xxxxxxxxxxx 40
>>>> you@xxxxxxxxxx 100
>>>> you@xxxxxxxxxx 30
>>>>
>>>> I need to get the total number of messages for each email address.
>>> This screams out for associative arrays. (Also called hashes,
>>> dictionaries, maps, etc.)
>>>
>>> That does limit you to CentOS 7+, or maybe 6+, as I recall. CentOS 5
>>> is
>>> definitely out, as that ships Bash 3, which lacks this feature.
>> <snip>
>> Associative arrays?
>>
>> Awk! Awk! (No, I am not a seagull...)
>>
>> sort file | awk '{ array[$1] += $2;} END { for (i in array) { print i
>> "\t"
>> array[i];}'
>>
>> mark "associative arrays, how do I love thee? Let me tot the
>> arrays..."
>>
>>
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>
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