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NAME
    SortTextFiles.pl - Sort TextFile(s) using values for a column

SYNOPSIS
    SortTextFiles.pl TextFile(s)...

    SortTextFiles.pl [-d, --detail infolevel] [-h, --help] [--indelim comma
    | semicolon] [-k, --key colnum | collabel] [--keydata numeric |
    alphanumeric] [-m, --mode colnum | collabel] [-o, --overwrite]
    [--outdelim comma | tab | semicolon] [-q, --quote yes | no] [-r, --root
    rootname] [-s, --sort ascending | descending] [-w, --workingdir dirname]
    TextFile(s)...

DESCRIPTION
    Sort *TextFile(s)* using values for a key column specified by a column
    number or label. Only one column key can be specified for sorting. In an
    event of conflict during sorting process, two similar values for a
    column key are simply transferred to output files in order of their
    presence in input files. Additionally, rows with empty or inappropriate
    values for column key are simply placed at the end. The file names are
    separated by space. The valid file extensions are *.csv* and *.tsv* for
    comma/semicolon and tab delimited text files respectively. All other
    file names are ignored. All the text files in a current directory can be
    specified by **.csv*, **.tsv*, or the current directory name. The
    --indelim option determines the format of *TextFile(s)*. Any file which
    doesn't correspond to the format indicated by --indelim option is
    ignored.

OPTIONS
    -d, --detail *infolevel*
        Level of information to print about lines being ignored. Default:
        *1*. Possible values: *1, 2 or 3*.

    -h, --help
        Print this help message.

    --indelim *comma | semicolon*
        Input delimiter for CSV *TextFile(s)*. Possible values: *comma or
        semicolon*. Default value: *comma*. For TSV files, this option is
        ignored and *tab* is used as a delimiter.

    -k, --key *col number | col name*
        This value is mode specific. It specifies which column to use for
        sorting *TextFile(s)*. Possible values: *col number or col label*.
        Default value: *first column*.

    --keydata *numeric | alphanumeric*
        Data type for column key. Possible values: *numeric or
        alphanumeric*. Default value: *numeric*. For *alphanumeric* data
        values, comparison is case insensitive.

    -m, --mode *colnum | collabel*
        Specify how to sort text files: using column number or column label.
        Possible values: *colnum or collabel*. Default value: *colnum*.

    -o, --overwrite
        Overwrite existing files.

    --outdelim *comma | tab | semicolon*
        Output text file delimiter. Possible values: *comma, tab, or
        semicolon* Default value: *comma*.

    -q, --quote *yes | no*
        Put quotes around column values in output text file. Possible
        values: *yes or no*. Default value: *yes*.

    -r, --root *rootname*
        New text file name is generated using the root: <Root>.<Ext>.
        Default new file name: <InitialTextFileName>SortedByColumn.<Ext>.
        The csv, and tsv <Ext> values are used for comma/semicolon, and tab
        delimited text files respectively. This option is ignored for
        multiple input files.

    -s, --sort *ascending | descending*
        Sorting order for column values. Possible values: *ascending or
        descending*. Default value: *ascending*.

    -w, --workingdir *dirname*
        Location of working directory. Default: current directory.

EXAMPLES
    To perform numerical sort in ascending order using first column values
    and generate a new CSV text file NewSample1.csv, type:

        % SortTextFiles.pl -o -r NewSample1 Sample1.csv

    To perform numerical sort in descending order using MolWeight column and
    generate a new CSV text file NewSample1.csv, type:

        % SortTextFiles.pl -m collabel -k MolWeight --keydata numeric
          -s descending -r NewSample1 -o Sample1.csv

    To perform numerical sort in ascending order using column number 1 and
    generate a new TSV text file NewSample1.csv, type:

        % SortTextFiles.pl -m colnum -k 1 --keydata numeric -s ascending
          -r NewSample1 --outdelim tab -o Sample1.csv

AUTHOR
    Manish Sud <[e-mail]>

SEE ALSO
    JoinTextFiles.pl, MergeTextFilesWithSD.pl, ModifyTextFilesFormat.pl,
    SplitTextFiles.pl, TextFilesToHTML.pl

COPYRIGHT
    Copyright (C) 2015 Manish Sud. All rights reserved.

    This file is part of MayaChemTools.

    MayaChemTools is free software; you can redistribute it and/or modify it
    under the terms of the GNU Lesser General Public License as published by
    the Free Software Foundation; either version 3 of the License, or (at
    your option) any later version.