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Full Discussion: Cutting a column and pasting its number
Top Forums Shell Programming and Scripting Cutting a column and pasting its number Post 302924868 by stdroid on Wednesday 12th of November 2014 06:08:56 PM
Old 11-12-2014
Thanks, Scrutinizer. It is an appealing one-liner, but it comes at the cost of clarity (at least to my novice eyes). I ended up saving RudiC's code as a stand-alone awk script and then piping its output to sort. Even though this is a "one-off" project and I don't foresee revisiting it again, in a few months it will be nice to be understand the "magic". ;-)
 

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LEARN ABOUT OSX

cfront

fileutil::magic::cfront(n)					  file utilities					fileutil::magic::cfront(n)

__________________________________________________________________________________________________________________________________________________

NAME

       fileutil::magic::cfront - Generator core for compiler of magic(5) files

SYNOPSIS

       package require Tcl  8.4

       package require fileutil::magic::cfront	?1.0?

       package require fileutil::magic::cgen  ?1.0?

       package require fileutil::magic::rt  ?1.0?

       package require struct::list

       package require fileutil

       ::fileutil::magic::cfront::compile path...

       ::fileutil::magic::cfront::procdef procname path...

       ::fileutil::magic::cfront::install path...

_________________________________________________________________

DESCRIPTION

       This  package  provides	the  frontend of a compiler of magic(5) files into recognizers based on the fileutil::magic::rt recognizer runtime
       package. For the generator backed used by this compiler see the package fileutil::magic::cgen.

COMMANDS

       ::fileutil::magic::cfront::compile path...
	      This command takes the paths of one or more files and directories and compiles all the files, and the files in all  the  directories
	      into a single recognizer for all the file types specified in these files.

	      All the files have to be in the format specified by magic(5).

	      The result of the command is a Tcl script containing the generated recognizer.

       ::fileutil::magic::cfront::procdef procname path...
	      This  command  behaves like ::fileutil::magic::cfront::compile with regard to the specified path arguments, then wraps the resulting
	      recognizer script into a procedure named procname, puts code setting up the namespace of procname in front, and returns the  result-
	      ing script.

       ::fileutil::magic::cfront::install path...
	      This  command  uses  ::fileutil::magic::cfront::procdef  to  compile  each of the paths into a recognizer procedure and installs the
	      result in the current interpreter.

	      The name of each new procedure is derived from the name of the file/directory used in its creation, with file/directory "FOO"  caus-
	      ing the creation of procedure ::fileutil::magic::/FOO::run.

BUGS, IDEAS, FEEDBACK
       This document, and the package it describes, will undoubtedly contain bugs and other problems.  Please report such in the category fileutil
       :: magic of the Tcllib SF Trackers [http://sourceforge.net/tracker/?group_id=12883].  Please also report any ideas for enhancements you may
       have for either package and/or documentation.

SEE ALSO

       file(1), fileutil, magic(5)

KEYWORDS

       file recognition, file type, file utilities, mime, type

CATEGORY

       Programming tools

fumagic 								1.0						fileutil::magic::cfront(n)
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