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Full Discussion: Sum based on certain column
Top Forums UNIX for Dummies Questions & Answers Sum based on certain column Post 302834695 by Don Cragun on Friday 19th of July 2013 02:31:27 PM
Old 07-19-2013
Quote:
Originally Posted by bakunin
You might want to read this thread where i have covered exactly this problem.

I hope this helps.

bakunin
It isn't quite the same in this case because the input is not in sorted order and (since the month and day fields in the date are variable length [1 or 2 digits instead of always two digits with a leading 0 when needed] in the general case, the year is after the month and day, and there are different field separators needed to sort the parts of the date and the other field) the sort utility can't be used without a separate processing step to normalize the date.

If the OP doesn't care about the output order, this is trivial to do with awk. If the output needs to be sorted by year, month, day, and input column 6; the processing is more involved. I'm still waiting for radius to say whether or not output order matters.
 

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NEATEN(1)						      General Commands Manual							 NEATEN(1)

NAME
neaten - neaten up output columns SYNOPSIS
neaten [ format ] DESCRIPTION
Neaten reads from its standard input and neatens up columns separated by white space using the specified format. The format is a string consisting of a positive integer followed by an alignment character and another integer. The alignment character is usually a decimal point ('.'), but it can be any non-digit. The alignment character is used as the central point of each column. The total column field width will be the number to the left of the alignment character plus one for the alignment character itself plus the number to the right of the alignment character. If a field does not contain the alignment character, it will be printed to the left of where the alignment character would have appeared. If a field is too long to print within the specified format, the entire field will be printed and that row will not be aligned with the rest. The default format is "8.8". EXAMPLE
To examine a file with columns of numbers: neaten 10.8 < input | more BUGS
Columns wider than the total width of the format specification will be printed without any separating white space. The program does not do anything special with tabs on the input. AUTHOR
Greg Ward SEE ALSO
cnt(1), rcalc(1), rlam(1), total(1) RADIANCE
11/15/93 NEATEN(1)
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