Use sort to sort numerical column Post: 303035328

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Top Forums Shell Programming and Scripting Use sort to sort numerical column Post 303035328 by sand1234 on Tuesday 21st of May 2019 08:38:43 AM

05-21-2019

Registered User

reviewing solutions

reviewing solutions

--- Post updated at 12:38 PM ---

Hi,

1st solution works:

Code:

$ sed 's/^ *//' bfd.txt | sort -bV

BE31.116              0s               0s               DOWN DAMP
BE31.116               0s               0s               DOWN DAMP
BE31.117              0s               0s               DOWN DAMP
BE31.702                 0s               0s               DOWN DAMP
BE31.961              0s               0s               DOWN DAMP
BE31.3918           0s               0s               DOWN DAMP
BE62.2040               0s               0s               DOWN DAMP

2nd solution fails:

Code:

$ sed 's/^ *//' bfd.txt | sort -k1.3,1n

BE31.116              0s               0s               DOWN DAMP
BE31.116              0s               0s               DOWN DAMP
BE31.117               0s               0s               DOWN DAMP
BE31.3918             0s               0s               DOWN DAMP  <----- incorrect
BE31.702                 0s               0s               DOWN DAMP
BE31.961            0s               0s               DOWN DAMP
BE62.2040               0s               0s               DOWN DAMP

Can you please shed some light on why the 2nd solution does not work?
Also, why do we need 1n after -k1,3? I get the same result with and without this switch.

Thanks,

Last edited by Scrutinizer; 05-21-2019 at 11:52 AM..

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gl-117

GL-117(6)							  gl-117 overview							 GL-117(6)

NAME

       gl-117 - an OpenGL action flight simulator

SYNOPSIS

       gl-117 [-dlevel -h -v]

DESCRIPTION

       gl-117  is an OpenGL and SDL based action flight simulator written in ISO C++.  Enter the Eagle Squadron and succeed in several challanging
       missions leading though different landscapes.  Five predefined levels of video quality and an amount of viewing ranges  let  you  perfectly
       adjust the game to the performance of your system.  The game provides joystick and mouse support, sound effects, and music.

OPTIONS

       -dlevel
	      Set  the debug level to level in [0..5]. '0' means quiet and will avoid any output, '1' will log fatal errors causing the program to
	      crash on stderr, '2' will also print exceptions on stderr, '3' will add warnings on stdout, '4' prints additional information  (pre-
	      defined) on stdout, and '5' gives developer specific messages on stdout.

       -h     Print a short summary on stdout and then quit immediately.

       -v     Display the version number of gl-117 and then quit immediately.

CONFIGURATION

       gl-117  uses  a predefined working directory ".gl-117" in the user's home directory to load and store all savegame files and read the plain
       text configuration files "conf" and "conf.interface".  If there are no config files available, gl-117 will create them using standard  set-
       tings. The contents of the files are quite self-explanatory.

DOCUMENTATION

       Please look at the gl-117 user manual (gl-117.pdf) for installation instructions and further gameplay related descriptions.

COPYRIGHT

       gl-117 is distributed under the terms of the GPL.

AUTHORS

       Thomas A. Drexl (tom.drexl@gmx.de)

								 27 February 2003							 GL-117(6)