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Top Forums Shell Programming and Scripting Running uniq -c and sort -nr in parallel. Post 302562765 by shoaibjameel123 on Saturday 8th of October 2011 06:18:05 AM
Old 10-08-2011
Running uniq -c and sort -nr in parallel.

Hi All,

I have a huge collection of files in a directory about 200000. I have the command below but it only uses one core of the computer. I want it to do task in parallel.

This is the command that I want to run in parallel:

Code:
sort testfile | uniq -c | sort -nr

I know how to run sort command in parallel:

Code:
cat testfile | parallel --pipe --files sort | parallel -Xj1 sort -m {} ';' rm {} >testfile.sort

Can anyone please help me so that I can run
Code:
sort testfile | uniq -c | sort -nr

command in parallel? I am using Linux with GNU parallel installed.
 

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WRAP-AND-SORT(1)					      General Commands Manual						  WRAP-AND-SORT(1)

NAME
wrap-and-sort - wrap long lines and sort items in Debian packaging files SYNOPSIS
wrap-and-sort [options] DESCRIPTION
wrap-and-sort wraps the package lists in Debian control files. By default the lists will only split into multiple lines if the entries are longer than 80 characters. wrap-and-sort sorts the package lists in Debian control files and all .install files. Beside that wrap-and-sort removes trailing spaces in these files. This script should be run in the root of a Debian package tree. It searches for control, control.in, copyright, copyright.in, install, and *.install in the debian directory. OPTIONS
-h, --help Show this help message and exit. -a, --wrap-always Wrap all package lists in the Debian control file even if the entries are shorter than 80 characters and could fit in one line line. -s, --short-indent Only indent wrapped lines by one space (default is in-line with the field name). -b, --sort-binary-packages Sort binary package paragraphs by name. -k, --keep-first When sorting binary package paragraphs, leave the first one at the top. Unqualified debhelper(7) configuration files are applied to the first package. -n, --no-cleanup Do not remove trailing whitespaces. -d path, --debian-directory=path Location of the debian directory (default: ./debian). -f file, --file=file Wrap and sort only the specified file. You can specify this parameter multiple times. All supported files will be processed if no files are specified. -v, --verbose Print all files that are touched. AUTHORS
wrap-and-sort and this manpage have been written by Benjamin Drung <bdrung@debian.org>. Both are released under the ISC license. DEBIAN
Debian Utilities WRAP-AND-SORT(1)
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