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Full Discussion: BASH. Need to extract some numbers and take the average
Top Forums Shell Programming and Scripting BASH. Need to extract some numbers and take the average Post 302367190 by slackjack on Sunday 1st of November 2009 09:15:47 PM
Old 11-01-2009
BASH. Need to extract some numbers and take the average
Hey all,

I ran some simulations, of which the output is 100s of files. I've used grep to extract the vital information needed from the files. This has made my task somewhat easier. But I still need to perform some mathematical calculations (average and geometrical average) on the results of the grep command (which is saved to a txt file).

The general format of the output of grep is (just a crude example):
Code:
a-4.txt number of eggs used is ## in #  cartons
b-4.txt number of eggs used is ## in #  cartons
b-6.txt number of eggs used is ## in #  cartons
a-6.txt number of eggs used is ## in #  cartons
a-8.txt number of eggs used is ## in #  cartons
b-8.txt number of eggs used is ## in #  cartons
a-10.txt number of eggs used is ## in #  cartons
b-10.txt number of eggs used is ## in #  cartons

My aim here is to get the average number of cartons (#) needed to pack ## number of eggs. Here I want to average all the a-4, a-6, a-8, and a-10 and then all the b-4, b-6, b-8, and b-10 cartons. SO my end result is to have an average number of cartons for both a and b. As you can imagine doing this by hand with results that can go up to 100 is very time consuming. Can someone please assist me with a BASH script that can make my job simpler?

Thank you.
 

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LEARN ABOUT DEBIAN

grcompiler

grcompiler(1)															     grcompiler(1)

NAME

       grcompiler - Compile GDL into a TrueType Font

SYNOPSIS

       grcompiler [-d] [-D] [-g] [-n number] [-v number] [-w number] [-wall] [-q] gdl-file font-file [output-file] [output-fontname]

Description
       Grcompiler  compiles  a	Graphite Description Language description of the smarts for a font along with a TrueType Font to create a graphite
       font with graphite tables in it.

       -d     Generate XML debugger file.

       -D     Generate all debugger files.

       -g     Permit and ignore invalid glyph definitions.

       -nnumber
	      Set name table start location.

       -q     Quiet mode (no messages except on error).

       -vnumber
	      Set Silf table version number.

       -wnnnn Ignore warning with the given number. This option may be repeated.

       -wall  Display all warnings.

Environment
       grcompiler makes use of the following environment variables

       GDLPP  Specifies the command to execute to run the GDL preprocessor

Files
       gdlerr.txt
	      Warnings and errors are output to this file.

       dbg_classes.txt
	      Debug file that specifies the classes stored in the font in terms of their GDL source and containing glyph ids in hex.

       dbg_cmap.txt
	      Debug file giving Unicode to glyph mapping of all the glyphs in the font and vice versa.

       dbg_enginecode.txt
	      Debug file containing the action code and constraint code associated with each pass and rule in a pass.

       dbg_fsm.txt
	      Debug file that gives the finite state machines of each pass and the rules referenced. For each pass, a  mapping	is  given  between
	      glyph and column number.

       dbg_glyphattrs.txt
	      Debug file containing all the glyph attributes and their names, along with values specified for each glyph.

       dbg_parsetree.txt
	      Debug file giving the complete parse tree of the GDL source file.

       dbg_ruleprec.txt
	      Debug file that lists the rules in precedence order (order in which they will be tested) for each pass.

       $_temp.gdl
	      Debug file containing the output of gdlpp

Author
       Martin Hosken <mhosken@users.sourceforge.net>

							   $Date: 2012-05-29 11:36:50 $ 					     grcompiler(1)
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