Re: [Nolug] Sorting lists of domains

This is what I came up with. I know I can get this smaller.

#!/bin/sh

PATH=/bin:/usr/bin

reverse() {
         rm $2
         for string in `cat $1`; do
                 n=1
                 delim=""
                 dc=`echo $string | cut -d. -f$n`
                 newstring=""
                 while [ ! -z "$dc" ]; do
                         [ $n -ge 2 ] && delim="."
                         newstring="$dc$delim$newstring"
                         n=`expr $n + 1`
                         dc=`echo $string | cut -d. -f$n`
                 done
                 echo $newstring >> $2
         done
}

reverse text text.1
sort text.1 > text.2
reverse text.2 text.3

At 03:43 PM 6/18/2003 -0500, you wrote:

>Let's see who can do this in a shell script with the least amount of code.
>
>At 01:38 PM 6/18/2003 -0500, you wrote:
>
>>The list has been a little quiet (down ?) for a couple of days, so here's
>>an easy question.
>>
>>I'm looking for a utility - Linux or otherwise - to take a list of
>>domains or even email
>>addresses and sort them from the TLD down. In other words, treating
>>periods as field
>>delimiters and sorting fields from right to left. So, for example:
>>
>>h.net
>>3.e.edu
>>c.mil
>>d.com
>>1.a.com
>>4.f.net
>>g.uk
>>2.b.gov
>>5.a.com
>>
>>would sort to
>>
>>1.a.com
>>5.a.com
>>d.com
>>3.e.edu
>>2.b.gov
>>c.mil
>>4.f.net
>>h.net
>>g.uk
>>
>>Someone must have made a tool to do this, but I can't find one. I could
>>probably cobble
>>something together in Perl, but I don't want to reinvent the wheel. All I
>>get from
>>web searches are mailing list programs and domain registration tools.
>>
>>Thanks.
>>
>>
>>Mark Robinson
>>
>>___________________
>>Nolug mailing list
>>nolug@nolug.org
>
>
>---
>Dustin Puryear <dustin@puryear-it.com>
>Puryear Information Technology
>Windows, UNIX, and IT Consulting
>http://www.puryear-it.com
>
>___________________
>Nolug mailing list
>nolug@nolug.org
>

---
Dustin Puryear <dustin@puryear-it.com>
Puryear Information Technology
Windows, UNIX, and IT Consulting
http://www.puryear-it.com
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