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Full Discussion: sorting left-justified numeric values
Top Forums Shell Programming and Scripting sorting left-justified numeric values Post 302719283 by rovf on Monday 22nd of October 2012 10:42:02 AM
Old 10-22-2012
Question sorting left-justified numeric values
I have a file which looks roughly like this:

996 mmmmmmm
996 xxxxxxxxxxxxx
99600 ssssssssss
9964 fffffffffffff

and would like to sort it numerically on the first field. I tried:

sort -nr --key=1 ....

The output I get is:

99600 ssssssssss
9964 fffffffffffff
996 mmmmmmm
996 xxxxxxxxxxxxx

The output I would like to have:

996 mmmmmmm
996 xxxxxxxxxxxxx
9964 fffffffffffff
99600 ssssssssss

Of course I can solve this by writing a one-liner in, say, Perl or Ruby, but I wonder why my approach had not worked, and how I can use the genuine 'sort' command to achieve my goal.
 

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LEARN ABOUT PHP

iconv_mime_encode

ICONV_MIME_ENCODE(3)							 1						      ICONV_MIME_ENCODE(3)

iconv_mime_encode - Composes a MIMEheader field

SYNOPSIS

       string iconv_mime_encode NULL (string  $field_name, string  $field_value, [array  $preferences])

DESCRIPTION

	Composes and returns a string that represents a valid MIME header field, which looks like the following:

       Subject: =?ISO-8859-1?Q?Pr=FCfung_f=FCr?= Entwerfen von einer MIME kopfzeile

PARAMETERS

	      o $field_name
		- The field name.

	      o $field_value
		- The field value.

	      o $preferences
		-  You	can  control the behaviour of iconv_mime_encode(3) by specifying an associative array that contains configuration items to
		the optional third parameter $preferences. The items supported by iconv_mime_encode(3) are listed below. Note that item names  are
		treated case-sensitive.

	      Configuration items supported by iconv_mime_encode(3)

	      +-----------------+--------------------------+---+---+---+
	      |      Item	|			   |   |   |   |
	      | 		|			   |   |   |   |
	      | 		|	    Type	   |   |   |   |
	      | 		|			   |   |   |   |
	      | 		|	Description	   |   |   |   |
	      | 		|			   |   |   |   |
	      | 		|      Default value	   |   |   |   |
	      | 		|			   |   |   |   |
	      | 		|	  Example	   |   |   |   |
	      | 		|			   |   |   |   |
	      +-----------------+--------------------------+---+---+---+
	      |     scheme	|			   |   |   |   |
	      | 		|			   |   |   |   |
	      | 		|			   |   |   |   |
	      | 		|	   string	   |   |   |   |
	      | 		|			   |   |   |   |
	      | 		|  Specifies the method to |   |   |   |
	      | 		| encode a field value by. |   |   |   |
	      | 		| The  value  of this item |   |   |   |
	      | 		| may  be  either  "B"	or |   |   |   |
	      | 		| "Q",	where  "B"  stands |   |   |   |
	      | 		| for	base64	  encoding |   |   |   |
	      | 		| scheme  and  "Q"  stands |   |   |   |
	      | 		| for	  quoted-printable |   |   |   |
	      | 		| encoding scheme.	   |   |   |   |
	      | 		|			   |   |   |   |
	      | 		|	     B		   |   |   |   |
	      | 		|			   |   |   |   |
	      | 		|	     B		   |   |   |   |
	      | 		|			   |   |   |   |
	      | input-charset	|			   |   |   |   |
	      | 		|			   |   |   |   |
	      | 		|			   |   |   |   |
	      | 		|	   string	   |   |   |   |
	      | 		|			   |   |   |   |
	      | 		|  Specifies the character |   |   |   |
	      | 		| set in which	the  first |   |   |   |
	      | 		| parameter    $field_name |   |   |   |
	      | 		| and the second parameter |   |   |   |
	      | 		| $field_value	 are  pre- |   |   |   |
	      | 		| sented.  If  not  given, |   |   |   |
	      | 		| iconv_mime_encode(3)	   |   |   |   |
	      | 		| assumes those parameters |   |   |   |
	      | 		| are  presented  to it in |   |   |   |
	      | 		| the	      iconv.inter- |   |   |   |
	      | 		| nal_encoding	 ini  set- |   |   |   |
	      | 		| ting. 		   |   |   |   |
	      | 		|			   |   |   |   |
	      | 		| iconv.internal_encoding  |   |   |   |
	      | 		|			   |   |   |   |
	      | 		|	 ISO-8859-1	   |   |   |   |
	      | 		|			   |   |   |   |
	      | output-charset	|			   |   |   |   |
	      | 		|			   |   |   |   |
	      | 		|			   |   |   |   |
	      | 		|	   string	   |   |   |   |
	      | 		|			   |   |   |   |
	      | 		|  Specifies the character |   |   |   |
	      | 		| set  to  use	to compose |   |   |   |
	      | 		| the MIME header.	   |   |   |   |
	      | 		|			   |   |   |   |
	      | 		| iconv.internal_encoding  |   |   |   |
	      | 		|			   |   |   |   |
	      | 		|	   UTF-8	   |   |   |   |
	      | 		|			   |   |   |   |
	      |  line-length	|			   |   |   |   |
	      | 		|			   |   |   |   |
	      | 		|			   |   |   |   |
	      | 		|	  integer	   |   |   |   |
	      | 		|			   |   |   |   |
	      | 		|  Specifies  the  maximum |   |   |   |
	      | 		| length   of  the  header |   |   |   |
	      | 		| lines.   The	 resulting |   |   |   |
	      | 		| header  is "folded" to a |   |   |   |
	      | 		| set of multiple lines in |   |   |   |
	      | 		| case	  the	 resulting |   |   |   |
	      | 		| header  field  would	be |   |   |   |
	      | 		| longer than the value of |   |   |   |
	      | 		| this parameter,  accord- |   |   |   |
	      | 		| ing  to RFC2822 - Inter- |   |   |   |
	      | 		| net Message  Format.	If |   |   |   |
	      | 		| not  given,  the  length |   |   |   |
	      | 		| will be  limited  to	76 |   |   |   |
	      | 		| characters.		   |   |   |   |
	      | 		|			   |   |   |   |
	      | 		|	     76 	   |   |   |   |
	      | 		|			   |   |   |   |
	      | 		|	    996 	   |   |   |   |
	      | 		|			   |   |   |   |
	      |line-break-chars |			   |   |   |   |
	      | 		|			   |   |   |   |
	      | 		|			   |   |   |   |
	      | 		|	   string	   |   |   |   |
	      | 		|			   |   |   |   |
	      | 		|  Specifies  the sequence |   |   |   |
	      | 		| of characters to  append |   |   |   |
	      | 		| to  each line as an end- |   |   |   |
	      | 		| of-line sign when "fold- |   |   |   |
	      | 		| ing"	is  performed on a |   |   |   |
	      | 		| long	header	field.	If |   |   |   |
	      | 		| not given, this defaults |   |   |   |
	      | 		| to "
" ( CR LF). Note |   |   |   |
	      | 		| that	this  parameter is |   |   |   |
	      | 		| always  treated  as	an |   |   |   |
	      | 		| ASCII  string regardless |   |   |   |
	      | 		| of the value	of  input- |   |   |   |
	      | 		| charset.		   |   |   |   |
	      | 		|			   |   |   |   |
	      | 		|	    
	   |   |   |   |
	      | 		|			   |   |   |   |
	      | 		|	     
 	   |   |   |   |
	      | 		|			   |   |   |   |
	      +-----------------+--------------------------+---+---+---+
RETURN VALUES

	Returns an encoded MIME field on success, or FALSE if an error occurs during the encoding.

EXAMPLES

       Example #1

	      iconv_mime_encode(3) example

	      <?php
	      $preferences = array(
		  "input-charset" => "ISO-8859-1",
		  "output-charset" => "UTF-8",
		  "line-length" => 76,
		  "line-break-chars" => "
"
	      );
	      $preferences["scheme"] = "Q";
	      // This yields "Subject: =?UTF-8?Q?Pr=C3=BCfung=20Pr=C3=BCfung?="
	      echo iconv_mime_encode("Subject", "Prufung Prufung", $preferences);

	      $preferences["scheme"] = "B";
	      // This yields "Subject: =?UTF-8?B?UHLDvGZ1bmcgUHLDvGZ1bmc=?="
	      echo iconv_mime_encode("Subject", "Prufung Prufung", $preferences);
	      ?>

SEE ALSO

       imap_binary(3), mb_encode_mimeheader(3), imap_8bit(3), quoted_printable_encode(3).

PHP Documentation Group 												      ICONV_MIME_ENCODE(3)
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