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Full Discussion: AWK : Add Fields of lines with matching field
Top Forums Shell Programming and Scripting AWK : Add Fields of lines with matching field Post 302488273 by m.d.ludwig on Sunday 16th of January 2011 12:29:55 PM
Old 01-16-2011
The awk script:
Code:
{ l[NR] = $1; n[$1]++; s[$1] += $2; }
END {
  for (i in n) { a[i] = s[i] / n[i]; }
  for (i = 1; i <= NR; i++) { print l[i], a[l[i]]; }
}

Results in:
Code:
Test1 7.5
Test1 7.5
Test2 6.66667
Test2 6.66667
Test2 6.66667
Test3 4

You can adjust the print to get the numeric precision you need.
This User Gave Thanks to m.d.ludwig For This Post:
DerSeb
 

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LEARN ABOUT DEBIAN

deb-origin

deb-origin(5)							      Debian							     deb-origin(5)

NAME

       deb-origin - Vendor-specific information files

SYNOPSIS

       /etc/dpkg/origins/filename

DESCRIPTION

       The  files  in  /etc/dpkg/origins can provide information about various vendors who are providing Debian packages. They contain a number of
       fields, or comments when the line starts with '#'.  Each field begins with a tag, such as Vendor or Parent, followed by	a  colon  and  the
       body  of the field. Fields are delimited only by field tags. In other words, field text may be multiple lines in length, but the tools will
       join lines when processing the body of the field.

REQUIRED FIELDS

       Vendor: vendor-name
	      The value of this field determines the vendor name.

OPTIONAL FIELDS

       Vendor-URL: vendor-url
	      The value of this field determines the vendor URL.

       Bugs: bug-url
	      The value of this field determines the type and address of the bug tracking system used by this vendor. It can be a mailto URL or  a
	      debbugs URL (e.g., debbugs://bugs.debian.org/).

       Parent: vendor-name
	      The value of this field determines the vendor name of the vendor that this vendor derives from.

EXAMPLE

       Vendor: Debian
       Vendor-URL: http://www.debian.org/
       Bugs: debbugs://bugs.debian.org

SEE ALSO

       dpkg-vendor(1)

Debian Project							    2011-11-10							     deb-origin(5)
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