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Top Forums Shell Programming and Scripting Find duplicate values in specific column and delete all the duplicate values Post 302985863 by sajmar on Wednesday 16th of November 2016 11:38:04 AM
Old 11-16-2016
Find duplicate values in specific column and delete all the duplicate values

Dear folks

I have a map file of around 54K lines and some of the values in the second column have the same value and I want to find them and delete all of the same values. I looked over duplicate commands but my case is not to keep one of the duplicate values. I want to remove all of the same values in the specific column.

Say part of my input data is like this example:
Code:
M1 1 2345
M3 1 2345
M4 1 3456
M5 2 456
M6 2 5678
M7 2 5678
M8 2 7889

my desire output is:
Code:
M4 1 3456
M5 2 456
M8 2 7889

Thanks in advance

Sajmar
 

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pods::SDLx::Sound(3pm)					User Contributed Perl Documentation				    pods::SDLx::Sound(3pm)

NAME
SDLx::Sound - SDL sound extension CATEGORY
Extension SYNOPSIS
use SDLx::Sound; my $snd = SDLx::Sound->new(); # loads and plays a single sound now $snd->play('myfile.wav'); # load a single file $snd->load('theSound.aif'); # plays it or all loaded files $snd->play(); # more sounds my %files = ( channel_01 => "/my_sound1.wav", channel_02 => "/my_sound2.ogg" ); # times sounds bangs my %times = ( channel_01 => 0, # start channel_01 => 1256, # milliseconds channel_02 => 2345 ); # Load files in channels for realtime play $snd->load(%files); # sets sound channel_01 loudness $snd->loud('channel_01', 80); # loud at 80% $snd->play(%times); # play loaded files at times $snd->play; # play again # plays sound channel_01 at 578 milliseconds from now $snd->play('channel_01', 578); # fades sound $snd->fade('channel_02', 2345, 3456, -20); # in a single act do the whole Sound my $snd = SDLx::Sound->new( files => ( channel_01 => "/my_sound1.wav", channel_02 => "/my_sound2.ogg" ), loud => ( channel_01 => 80, channel_02 => 75 ), times => ( channel_01 => 0, # start channel_01 => 1256, # milliseconds channel_02 => 2345 ), fade => ( channel_02 => [2345, 3456, -20] ) )->play(); DESCRIPTION
You can think about the SDLx::Sound at 2 approaches. o A simple sound or o The sound of your game or app. Your application will say what the best approach. In a taste that resembles to perl and to SDL, our SDLx:Sound hooks at SDL::Audio and SDL::Mixer with a graceful and simple interface that can offer to monks a modern perlish way to manage sounds. An SDLx::Sound object can load sounds from filesystem, play it, adjust this loudness level or stops the sound. Each sound will play in the next available channel, so it can be handled isolately. METHODS
new Returns a new instance of SDLx::Sound load play $sdlx_sound->play('file.wav'); Play a file pause resume stop AUTHORS
See "AUTHORS" in SDL. COPYRIGHT &; LICENSE This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. perl v5.14.2 2012-05-28 pods::SDLx::Sound(3pm)
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