parsort - Man Page
Sort (big files) in parallel
parsort options for sort
parsort uses GNU sort to sort in parallel. It works just like sort but faster on inputs with more than 1 M lines, if you have a multicore machine.
Hopefully these ideas will make it into GNU sort in the future.
parsort *.txt > sorted.txt
Sort stdin (standard input) numerically:
cat numbers | parsort -n > sorted.txt
parsort is faster on a file than on stdin (standard input), because different parts of a file can be read in parallel.
On a 48 core machine you should see a speedup of 3x over sort.
Copyright (C) 2020-2023 Ole Tange, http://ole.tange.dk and Free Software Foundation, Inc.
Copyright (C) 2012 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or at your option any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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parsort uses sort, bash, and parallel.