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awk group by

 
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Old 05-19-2009
Hammer & Screwdriver awk group by
Hi
I have a file in this format:
...
04/May/2009 16
04/May/2009 1
05/May/2009 3
05/May/2009 5
06/May/2009 1
06/May/2009 3
...

I need to sum for every day, What is the best way?
Thanks all
 
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vite

VITE(1) 							 ViTE Manual Pages							   VITE(1)

	 ..___________..._
    __vXXX=========onn=XX=X=s_..
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	     ]l||||||||v}'	   "Xnnnnnn=o=====XXXX=adZ=__
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NAME

       vite - a visual trace explorer

SYNOPSIS

       vite
       vite -h
       vite [-f|-a] file_path [-e export_path] [-t [time_init]:[time_end]]

DESCRIPTION

       ViTE is a visual trace explorer. It is a useful tool for profiling and debugging parallel programs (multi-process or multi-core).
       ViTE  reads program execution trace data from file (currently in Paje trace format) and display it in a graphical interface. Program execu-
       tion data could be a state (drawn as a colored rectangle - color depends of the kind of state), an event (drawn as a green disc) or a  com-
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OPTIONS

       ViTE accepts the following options:

       -h      Display help.

       -f file_path
	       Open the file_path file.

       -a file_path
	       Open the file_path file and display it entirely.

       -e export_path
	       Export the opened trace file (with -f or -a option) to the export_path file in SVG format.

       -t [time_init]:[time_end]
	       Just parse trace from time_init to time_end.
	       If time_init is missed, trace will be parsed from the minimum time to time_end.
	       If time_end is missed, trace will be parsed from time_init to the maximum time.

AUTHORS

       ViTE was created by a group of french engineering school students for the INRIA research center.

REPORTING BUGS

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COPYRIGHT

       ViTE was released under the CeCILL-A licence. The content can be found here: http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt.
	       Copyright (C) 2009 Kevin COULOMB
	       Copyright (C) 2009 Johnny JAZEIX
	       Copyright (C) 2009 Olivier LAGRASSE
	       Copyright (C) 2009 Jule MARCOUEILLE
	       Copyright (C) 2009 Pascal NOISETTE
	       Copyright (C) 2009 Arthur REDONDY
	       Copyright (C) 2009 Clement VUCHENER

       This is free software: you are free to change and redistribute it.
       There is NO WARRANTY, to the extent permitted by law.

Version 1.2							    April 2009								   VITE(1)