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Full Discussion: [awk] Math & Bold-Font?
Top Forums Shell Programming and Scripting [awk] Math & Bold-Font? Post 302935472 by sea on Monday 16th of February 2015 11:50:49 PM
Old 02-17-2015
Thank you RudiC for the updated code, sadly, one cant double thank in such situations.

So what i have now is this, with these questions:
Code:
	ln10=log(10)	# What is this for?
	#print ln10	## 2.30259

Really, i can make no sense of it, maybe i'm too focused on the number?

Code:
	# Again what for is ln10 used here and XP prepared for? And what is done anwyay?
	XP=int(log(NBR)/ln10/3)
	# print XP # = 1 or 0

Well i understand the 'order' of the math i guess, make a LOG-number from the passed NBR, and then do-something with 2.30259/3 and finaly make that an int-number.
Is that about right?
Guess the best to describe my question: i cant figure out the formula beeing used (actualy its naturaly spoken 'syntax').

Code:
	# sprintf is one topic, but what is why done with XP (1 or 0)?
	return sprintf ("%.2f%s", NBR / 10^(3*XP), U[1+XP])

Its passed NBR divided by 10 square 3 times either 0 or 1, and selecting its output string according to passed array U. (? 1+XP == XP+1 ?)
Is XP here used like 'shift' with 'getopts' (or just similar tasks)?

Code:
	# How can i check for the current line its [BP]UNT value?
	if("B" == U) { 		# This still prints output, but doesnt do the changes wanted
	## if("B" == BUNT) {	# This way it prints absolute nothing ??
		split(bitrate,B,".")
		bitrate=B[1]
	}

I've also tried if("B" in BUNT) without luck either Smilie
This last one is an attempt to remove the .00 of the bitrate colum for the values not exceeding the Byte range.

Thank you in advance for clearing up.
Have a good day!
 

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RAKE(1) 						 Ruby Programmers Reference Guide						   RAKE(1)

NAME
rake -- Ruby Make SYNOPSIS
rake [--f Rakefile] [--version] [-CGNPgnqstv] [-D [PATTERN]] [-E CODE] [-I LIBDIR] [-R RAKELIBDIR] [-T [PATTERN]] [-e CODE] [-p CODE] [-r MODULE] [--rules] [variable=value] target ... DESCRIPTION
Rake is a simple ruby(1) build program with capabilities similar to the regular make(1) command. Rake has the following features: o Rakefiles (Rake's version of Makefiles) are completely defined in standard Ruby syntax. No XML files to edit. No quirky Makefile syntax to worry about (is that a tab or a space?). o Users can specify tasks with prerequisites. o Rake supports rule patterns to synthesize implicit tasks. o Flexible FileLists that act like arrays but know about manipulating file names and paths. o A library of prepackaged tasks to make building rakefiles easier. OPTIONS
--version Display the program version. -C --classic-namespace Put Task and FileTask in the top level namespace -D [PATTERN] --describe [PATTERN] Describe the tasks (matching optional PATTERN), then exit. -E CODE --execute-continue CODE Execute some Ruby code, then continue with normal task processing. -G --no-system --nosystem Use standard project Rakefile search paths, ignore system wide rakefiles. -I LIBDIR --libdir LIBDIR Include LIBDIR in the search path for required modules. -N --no-search --nosearch Do not search parent directories for the Rakefile. -P --prereqs Display the tasks and dependencies, then exit. -R RAKELIBDIR --rakelib RAKELIBDIR --rakelibdir RAKELIBDIR Auto-import any .rake files in RAKELIBDIR. (default is rakelib ) -T [PATTERN] --tasks [PATTERN] Display the tasks (matching optional PATTERN) with descriptions, then exit. -e CODE --execute CODE Execute some Ruby code and exit. -f FILE --rakefile FILE Use FILE as the rakefile. -h --help Prints a summary of options. -g --system Using system wide (global) rakefiles (usually ~/.rake/*.rake ). -n --dry-run Do a dry run without executing actions. -p CODE --execute-print CODE Execute some Ruby code, print the result, then exit. -q --quiet Do not log messages to standard output. -r MODULE --require MODULE Require MODULE before executing rakefile. -s --silent Like --quiet, but also suppresses the 'in directory' announcement. -t --trace Turn on invoke/execute tracing, enable full backtrace. -v --verbose Log message to standard output (default). --rules Trace the rules resolution. SEE ALSO
ruby(1) make(1) http://rake.rubyforge.org/ REPORTING BUGS
Bugs, features requests and other issues can be logged at <http://onestepback.org/redmine/projects/show/rake>. You will need an account to before you can post issues. Register at <http://onestepback.org/redmine/account/register>. Or you can send an email to the author. AUTHOR
Rake is written by Jim Weirich <jim@weirichhouse.org> UNIX
November 7, 2012 UNIX
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