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Top Forums UNIX for Dummies Questions & Answers Removing duplicates from a file Post 302835715 by Sri3001 on Tuesday 23rd of July 2013 01:06:47 AM
Old 07-23-2013
Removing duplicates from a file

Hi All,

I am merging files coming from 2 different systems ,while doing that I am getting duplicates entries in the merged file

Code:
I,01,000131,764,2,4.00
I,01,000131,765,2,4.00
I,01,000131,772,2,4.00
I,01,000131,773,2,4.00
I,01,000168,762,2,2.00
I,01,000168,763,2,2.00
I,01,000622,761,6,14.64
I,01,000622,762,6,14.64
I,01,000622,763,6,14.64
I,01,000684,767,2,10.00
I,01,000131,764,2,5.00
I,01,000131,765,2,5.00
I,01,000131,772,2,6.00
I,01,000131,773,2,4.00
I,01,000168,762,2,2.00
I,01,000168,763,2,2.00
I,01,000622,761,6,14.64
I,01,000622,762,6,14.64
I,01,000622,763,6,14.64
I,01,000684,767,2,10.00


I tried using sort -u command to sort it unqiuely, using

Code:
sort -k 2,2 -k 3,3 -k 4,4 sample.txt | sort -u

,but it is not returning the correct result, it is giving the output like

Code:
I,01,000131,764,2,4.00
I,01,000131,764,2,5.00
I,01,000131,765,2,4.00
I,01,000131,765,2,5.00
I,01,000131,772,2,4.00
I,01,000131,772,2,6.00
I,01,000131,773,2,4.00
I,01,000168,762,2,2.00
I,01,000168,763,2,2.00
I,01,000622,761,6,14.64
I,01,000622,762,6,14.64
I,01,000622,763,6,14.64
I,01,000684,767,2,10.00

Is there way I can sort the file unique or remove duplicates using the 2nd ,3rd and 4th column as key fields.

Thanks
Sri

Last edited by Scrutinizer; 07-23-2013 at 02:15 AM.. Reason: code tags
 

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MSGUNIQ(1)								GNU								MSGUNIQ(1)

NAME
msguniq - unify duplicate translations in message catalog SYNOPSIS
msguniq [OPTION] [INPUTFILE] DESCRIPTION
Unifies duplicate translations in a translation catalog. Finds duplicate translations of the same message ID. Such duplicates are invalid input for other programs like msgfmt, msgmerge or msgcat. By default, duplicates are merged together. When using the --repeated option, only duplicates are output, and all other messages are discarded. Comments and extracted comments will be cumulated, except that if --use-first is specified, they will be taken from the first translation. File positions will be cumulated. When using the --unique option, duplicates are discarded. Mandatory arguments to long options are mandatory for short options too. Input file location: INPUTFILE input PO file -D, --directory=DIRECTORY add DIRECTORY to list for input files search If no input file is given or if it is -, standard input is read. Output file location: -o, --output-file=FILE write output to specified file The results are written to standard output if no output file is specified or if it is -. Message selection: -d, --repeated print only duplicates -u, --unique print only unique messages, discard duplicates Input file syntax: -P, --properties-input input file is in Java .properties syntax --stringtable-input input file is in NeXTstep/GNUstep .strings syntax Output details: -t, --to-code=NAME encoding for output --use-first use first available translation for each message, don't merge several translations -e, --no-escape do not use C escapes in output (default) -E, --escape use C escapes in output, no extended chars --force-po write PO file even if empty -i, --indent write the .po file using indented style --no-location do not write '#: filename:line' lines -n, --add-location generate '#: filename:line' lines (default) --strict write out strict Uniforum conforming .po file -p, --properties-output write out a Java .properties file --stringtable-output write out a NeXTstep/GNUstep .strings file -w, --width=NUMBER set output page width --no-wrap do not break long message lines, longer than the output page width, into several lines -s, --sort-output generate sorted output -F, --sort-by-file sort output by file location Informative output: -h, --help display this help and exit -V, --version output version information and exit AUTHOR
Written by Bruno Haible. REPORTING BUGS
Report bugs to <bug-gnu-gettext@gnu.org>. COPYRIGHT
Copyright (C) 2001-2007 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. SEE ALSO
The full documentation for msguniq is maintained as a Texinfo manual. If the info and msguniq programs are properly installed at your site, the command info msguniq should give you access to the complete manual. GNU gettext-tools 0.17 November 2007 MSGUNIQ(1)
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