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Full Discussion: date(ddmmyyyy) sorting
Top Forums Shell Programming and Scripting date(ddmmyyyy) sorting Post 302579862 by balajesuri on Tuesday 6th of December 2011 11:52:57 PM
Old 12-07-2011
input.txt:
Code:
20110730
20110730
20110731
20110731
20110801
20110801
20110801
20110813
20110815
01062011
01062011

script.sh:
Code:
#! /bin/bash
while read x
do
    echo $x | egrep -q "20[0-9][0-9](0[1-9]|1[0-2])(0[1-9]|[12][0-9]|3[01])"
    if [ $? -eq 0 ]
    then
        y=`echo $x | cut -c7-8``echo $x | cut -c5-6``echo $x | cut -c1-4`
        sed -i "s/$x/$y/" input.txt
    fi
done < input.txt
sort -n -k1.5 -k1.3 -k1 input.txt

Code:
$ ./script.sh
01062011
01062011
30072011
30072011
31072011
31072011
01082011
01082011
01082011
13082011
15082011


Last edited by balajesuri; 12-07-2011 at 01:06 AM..
 

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WORDWRAP(3)								 1							       WORDWRAP(3)

wordwrap - Wraps a string to a given number of characters

SYNOPSIS
string wordwrap (string $str, [int $width = 75], [string $break = "0], [bool $cut = false]) DESCRIPTION
Wraps a string to a given number of characters using a string break character. PARAMETERS
o $str - The input string. o $width - The number of characters at which the string will be wrapped. o $break - The line is broken using the optional $break parameter. o $cut - If the $cut is set to TRUE, the string is always wrapped at or before the specified $width. So if you have a word that is larger than the given width, it is broken apart. (See second example). When FALSE the function does not split the word even if the $width is smaller than the word width. RETURN VALUES
Returns the given string wrapped at the specified length. EXAMPLES
Example #1 wordwrap(3) example <?php $text = "The quick brown fox jumped over the lazy dog."; $newtext = wordwrap($text, 20, "<br /> "); echo $newtext; ?> The above example will output: The quick brown fox<br /> jumped over the lazy<br /> dog. Example #2 wordwrap(3) example <?php $text = "A very long woooooooooooord."; $newtext = wordwrap($text, 8, " ", true); echo "$newtext "; ?> The above example will output: A very long wooooooo ooooord. Example #3 wordwrap(3) example <?php $text = "A very long woooooooooooooooooord. and something"; $newtext = wordwrap($text, 8, " ", false); echo "$newtext "; ?> The above example will output: A very long woooooooooooooooooord. and something SEE ALSO
nl2br(3), chunk_split(3). PHP Documentation Group WORDWRAP(3)
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