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I have an unimportant but irritating problem with sort. I have a
file that contains information about hosts based on last
successful/unsuccessful ping. Here's what it looks like (hostname
anonymised):
<div>
<br>
</div>
<div>
<div><font face="courier new, monospace">10.220.133.101<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
</font></div>
<div><font face="courier new, monospace">10.220.133.102<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Thu Jun 27
19:30:38 BST 2013 RIV </font></div>
<div><font face="courier new, monospace">10.220.133.103<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
GMB </font></div>
<div><font face="courier new, monospace">10.220.133.104<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Wed Feb 20
04:37:23 GMT 2013 REC </font></div>
<div><font face="courier new, monospace">10.220.133.105<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Wed Feb 20
04:38:05 GMT 2013 1AD </font></div>
<div><font face="courier new, monospace">10.220.133.106<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Fri Dec 7
14:38:04 GMT 2012 2BB </font></div>
<div><font face="courier new, monospace">10.220.133.107<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Fri Dec 7
14:38:04 GMT 2012 3AA </font></div>
<div><font face="courier new, monospace">10.220.133.108<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Tue Dec 11
15:00:04 GMT 2012 3AB </font></div>
<div><font face="courier new, monospace">10.220.133.109<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Fri Dec 7
14:38:04 GMT 2012 NFM </font></div>
<div><font face="courier new, monospace">10.220.133.254<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
</font></div>
<div><font face="courier new, monospace">192.168.0.11<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Fri Jun 7
08:16:03 BST 2013 GMB Gi1/0/24 </font></div>
<div><font face="courier new, monospace">192.168.0.12<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Mon Aug 12
16:45:40 BST 2013 GMB Gi1/0/24 </font></div>
<div><font face="courier new, monospace">192.168.0.13<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Tue Jul 30
12:47:07 BST 2013 GMB Gi1/0/24 </font></div>
<div><font face="courier new, monospace">192.168.0.14<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Fri Jun 7
08:16:06 BST 2013 GMB Gi1/0/24 </font></div>
<div><font face="courier new, monospace">192.168.0.19<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
GMB Gi1/0/24 </font></div>
<div><font face="courier new, monospace">192.168.0.20<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Fri Jul 19
23:06:10 BST 2013 GMB Gi1/0/24 </font></div>
<div><font face="courier new, monospace">192.168.0.21<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
GMB Gi1/0/23 </font></div>
<div><font face="courier new, monospace">192.168.0.22<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Wed Feb 20
04:42:31 GMT 2013 REC Gi2/0/24 </font></div>
<div><font face="courier new, monospace">192.168.0.23<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Thu Jul 18
11:39:54 BST 2013 3AB Gi1/0/24 </font></div>
<div><font face="courier new, monospace">192.168.0.25<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Wed Feb 20
04:42:58 GMT 2013 1AD Gi1/0/24 </font></div>
<div><font face="courier new, monospace">192.168.0.27<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
RIV Gi1/0/24 </font></div>
<div><font face="courier new, monospace">192.168.0.28<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Sun Jun 23
16:56:21 BST 2013 REC Gi2/0/23 </font></div>
<div><font face="courier new, monospace">192.168.0.30<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Tue Jul 2
15:09:20 BST 2013 RIV Gi1/0/3 </font></div>
<div><font face="courier new, monospace">192.168.0.31<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since
</font></div>
<div><font face="courier new, monospace">192.168.0.32<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Tue Jul 23
12:20:58 BST 2013 </font></div>
<div><font face="courier new, monospace">192.168.0.33<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Tue Jul 23
12:21:00 BST 2013 </font></div>
<div><font face="courier new, monospace">192.168.0.34<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Tue Jul 23
12:21:01 BST 2013 </font></div>
<div><font face="courier new, monospace">192.168.0.201<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
RIV Gi1/0/22 </font></div>
<div><font face="courier new, monospace">192.168.0.202<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
RIV Gi1/0/24 </font></div>
<div><font face="courier new, monospace">192.168.0.203<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
RIV Gi1/0/23 </font></div>
<div><font face="courier new, monospace">192.168.0.204<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
GMB Gi1/0/2 </font></div>
<div><font face="courier new, monospace">192.168.0.205<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
GMB Gi1/0/1 </font></div>
<div><font face="courier new, monospace">192.168.0.206<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
GMB Gi1/0/4 </font></div>
<div><font face="courier new, monospace">192.168.0.207<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
REC Gi1/0/23 </font></div>
<div><font face="courier new, monospace">192.168.0.208<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
1AD Gi2/0/21 </font></div>
<div><font face="courier new, monospace">192.168.0.209<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
GMB Gi1/0/3 </font></div>
<div><font face="courier new, monospace">192.168.0.210<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since
1AD Gi2/0/23 </font></div>
<div><font face="courier new, monospace">192.168.0.211<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Thu Aug 1
09:54:58 BST 2013 REC Gi1/0/24 </font></div>
<div><font face="courier new, monospace">192.168.0.212<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
1AD Gi2/0/24 </font></div>
<div><font face="courier new, monospace">192.168.0.213<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
1AD Gi2/0/22 </font></div>
<div><font face="courier new, monospace">192.168.0.214<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
REC Gi1/0/21 </font></div>
<div><font face="courier new, monospace">192.168.0.215<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
2BB Gi2/0/20 </font></div>
<div><font face="courier new, monospace">192.168.0.216<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
2BB Gi2/0/19 </font></div>
<div><font face="courier new, monospace">192.168.0.217<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
REC Gi1/0/22 </font></div>
<div><font face="courier new, monospace">192.168.0.218<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
3AA Gi1/0/19 </font></div>
<div><font face="courier new, monospace">192.168.0.219<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
3AA Gi1/0/23 </font></div>
<div><font face="courier new, monospace">192.168.0.220<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
REC Gi1/0/20 </font></div>
<div><font face="courier new, monospace">192.168.0.221<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
3AB Gi1/0/24 </font></div>
<div><font face="courier new, monospace">192.168.0.222<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
3AB Gi1/0/23 </font></div>
<div><font face="courier new, monospace">192.168.0.223<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
3AB Gi1/0/22 </font></div>
<div><font face="courier new, monospace">192.168.0.224<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
3AA Gi1/0/24 </font></div>
<div><font face="courier new, monospace">192.168.0.225<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
3AB Gi1/0/18 </font></div>
<div><font face="courier new, monospace">192.168.0.253<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
GMB Gi1/0/24 </font></div>
<div><font face="courier new, monospace">192.168.1.1<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Tue Jun 25
15:07:38 BST 2013 2BB Gi2/0/9 </font></div>
<div><font face="courier new, monospace">192.168.1.2<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Sat Jul 13
07:40:20 BST 2013 2BB Gi1/0/2 </font></div>
<div><font face="courier new, monospace">192.168.1.3<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Sat Jul 13
07:38:12 BST 2013 2BB Gi1/0/18 </font></div>
<div><font face="courier new, monospace">192.168.1.4<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Mon Aug 12
16:55:49 BST 2013 2BB Gi1/0/4 </font></div>
<div><font face="courier new, monospace">192.168.1.5<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Mon Aug 12
17:23:09 BST 2013 2BB Gi2/0/2 </font></div>
<div><font face="courier new, monospace">192.168.1.6<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
1AD Gi1/0/1 </font></div>
<div><font face="courier new, monospace">192.168.1.7<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Mon Mar 11
15:28:51 GMT 2013 2BB Gi1/0/19 </font></div>
<div><font face="courier new, monospace">192.168.1.8<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Fri Jul 12
03:38:09 BST 2013 </font></div>
<div><font face="courier new, monospace">192.168.1.10<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
EC Gi1/0/6 </font></div>
<div><font face="courier new, monospace">192.168.1.11<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Mon Aug 12
17:23:19 BST 2013 2BB Gi1/0/8 </font></div>
<div><font face="courier new, monospace">192.168.1.37<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Mon Aug 12
17:23:21 BST 2013 GMB Gi1/0/21 </font></div>
<div><font face="courier new, monospace">192.168.1.40<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Wed Aug 14
04:37:46 BST 2013 </font></div>
<div><font face="courier new, monospace">192.168.1.42<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Mon Aug 12
17:23:24 BST 2013 GMB Gi1/0/14 </font></div>
<div><font face="courier new, monospace">192.168.1.43<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Mon Aug 12
17:23:25 BST 2013 2BB Gi1/0/5 </font></div>
<div><font face="courier new, monospace">192.168.1.45<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
GMB Gi1/0/16 </font></div>
<div><font face="courier new, monospace">192.168.1.46<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
GMB Gi1/0/16 </font></div>
<div><font face="courier new, monospace">192.168.1.101<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Mon Aug 12
17:23:43 BST 2013 2BB Gi1/0/13 </font></div>
<div><font face="courier new, monospace">192.168.1.106<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Mon Aug 12
17:23:48 BST 2013 2BB Gi1/0/11 </font></div>
<div><font face="courier new, monospace">192.168.1.111<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Mon Aug 12
17:23:49 BST 2013 2BB Gi1/0/12 </font></div>
<div><font face="courier new, monospace">192.168.1.116<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
1AD Gi2/0/14 </font></div>
<div><font face="courier new, monospace">192.168.1.122<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
2BB Gi2/0/1 </font></div>
<div><font face="courier new, monospace">192.168.1.123<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
2BB Gi1/0/7 </font></div>
<div><font face="courier new, monospace">192.168.1.124<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Mon Aug 12
17:23:54 BST 2013 GMB Gi1/0/14 </font></div>
<div><font face="courier new, monospace">192.168.1.125<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Mon Aug 12
17:23:55 BST 2013 2BB Gi2/0/12 </font></div>
<div><font face="courier new, monospace">192.168.1.126<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Mon Aug 12
17:23:57 BST 2013 RIV Gi1/0/13 </font></div>
<div><font face="courier new, monospace">192.168.1.129<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Mon Aug 12
17:23:59 BST 2013 2BB Gi1/0/5 </font></div>
<div><font face="courier new, monospace">192.168.1.130<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Mon Aug 12
17:24:00 BST 2013 GMB Gi1/0/21 </font></div>
<div><font face="courier new, monospace">192.168.1.133<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Mon Aug 12
16:49:48 BST 2013 RIV Gi1/0/1 </font></div>
<div><font face="courier new, monospace">192.168.1.135<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Mon Aug 12
17:24:07 BST 2013 RIV Gi1/0/10 </font></div>
<div><font face="courier new, monospace">192.168.1.136<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Mon Aug 12
17:24:09 BST 2013 3AB Gi1/0/1 </font></div>
<div><font face="courier new, monospace">192.168.1.137<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Mon Aug 12
16:49:56 BST 2013 3AB Gi1/0/4 </font></div>
<div><font face="courier new, monospace">192.168.1.141<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Wed Jun 12
09:18:26 BST 2013 </font></div>
<div><font face="courier new, monospace">192.168.1.146<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Tue Jun 18
10:52:16 BST 2013 </font></div>
<div><font face="courier new, monospace">192.168.1.148<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
GMB Gi1/0/16 </font></div>
<div><font face="courier new, monospace">192.168.1.151<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Tue May 7
09:14:06 BST 2013 </font></div>
<div><font face="courier new, monospace">192.168.1.152<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
</font></div>
<div><font face="courier new, monospace">192.168.1.153<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
2BB Gi1/0/17 </font></div>
<div><font face="courier new, monospace">192.168.1.154<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
EC Gi1/0/4 </font></div>
<div><font face="courier new, monospace">192.168.1.155<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Thu Feb 14
10:57:04 GMT 2013 </font></div>
<div><font face="courier new, monospace">192.168.1.156<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Tue May 28
17:04:39 BST 2013 RIV Gi1/0/4 </font></div>
<div><font face="courier new, monospace">192.168.1.157<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
RIV </font></div>
<div><font face="courier new, monospace">192.168.1.158<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
RIV </font></div>
<div><font face="courier new, monospace">192.168.1.159<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
RIV </font></div>
<div><font face="courier new, monospace">192.168.1.160<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
RIV Gi1/0/4 </font></div>
<div><font face="courier new, monospace">192.168.1.163<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
</font></div>
<div><font face="courier new, monospace">192.168.1.164<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
EC Gi1/0/1 </font></div>
<div><font face="courier new, monospace">192.168.1.165<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since
</font></div>
<div><font face="courier new, monospace">192.168.1.166<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
EC Gi1/0/1 </font></div>
<div><font face="courier new, monospace">192.168.1.167<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Fri Jul 19
16:28:13 BST 2013 </font></div>
<div><font face="courier new, monospace">192.168.1.188<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Mon Aug 12
16:50:22 BST 2013 2BB Gi1/0/5 </font></div>
<div><font face="courier new, monospace">192.168.1.249<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
2BB Gi2/0/8 </font></div>
<div><font face="courier new, monospace">192.168.1.254<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Mon Mar 11
15:11:30 GMT 2013 </font></div>
<div><font face="courier new, monospace">192.168.2.104<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Fri Jul 19
16:43:18 BST 2013 </font></div>
<div><font face="courier new, monospace">192.168.7.1<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Tue Jul 16
15:36:26 BST 2013 </font></div>
<div><font face="courier new, monospace">192.168.7.2<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Tue Jul 16
15:36:27 BST 2013 </font></div>
<div><font face="courier new, monospace">192.168.202.1<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
GMB Gi1/0/20 </font></div>
<div><font face="courier new, monospace">192.168.202.2<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
2BB Gi4/0/15 </font></div>
<div><font face="courier new, monospace">192.168.202.3<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
2BB Gi4/0/4 </font></div>
<div><font face="courier new, monospace">192.168.202.4<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Wed Jul 24
15:58:54 BST 2013 2BB Gi3/0/7 </font></div>
<div><font face="courier new, monospace">192.168.202.5<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
2BB Gi4/0/6 </font></div>
<div><font face="courier new, monospace">192.168.202.6<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Mon Jul 22
16:22:13 BST 2013 2BB Gi4/0/7 </font></div>
<div><font face="courier new, monospace">192.168.202.7<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
2BB Gi4/0/8 </font></div>
<div><font face="courier new, monospace">192.168.202.8<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
2BB Gi4/0/9 </font></div>
<div><font face="courier new, monospace">192.168.202.9<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
2BB Gi3/0/3 </font></div>
<div><font face="courier new, monospace">192.168.202.10<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
2BB Gi3/0/15 </font></div>
<div><font face="courier new, monospace">192.168.202.11<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
2BB Gi4/0/10 </font></div>
<div><font face="courier new, monospace">192.168.202.12<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Thu Aug 1
14:53:02 BST 2013 2BB Gi4/0/11 </font></div>
<div><font face="courier new, monospace">192.168.202.13<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
2BB Gi4/0/12 </font></div>
<div><font face="courier new, monospace">192.168.202.14<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
2BB Gi4/0/14 </font></div>
<div><font face="courier new, monospace">192.168.202.15<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
2BB Gi3/0/4 </font></div>
<div><font face="courier new, monospace">192.168.202.16<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
2BB Gi4/0/16 </font></div>
<div><font face="courier new, monospace">192.168.202.17<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
1AD Gi2/0/11 </font></div>
<div><font face="courier new, monospace">192.168.202.18<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
1AD Gi2/0/6 </font></div>
<div><font face="courier new, monospace">192.168.202.19<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
1AD Gi2/0/5 </font></div>
<div><font face="courier new, monospace">192.168.202.21<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
1AD Gi2/0/2 </font></div>
<div><font face="courier new, monospace">192.168.202.22<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
2BB Gi4/0/19 </font></div>
<div><font face="courier new, monospace">192.168.202.23<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
2BB Gi4/0/23 </font></div>
<div><font face="courier new, monospace">192.168.202.24<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since
1AD Gi1/0/5 </font></div>
<div><font face="courier new, monospace">192.168.202.25<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
2BB Gi4/0/20 </font></div>
<div><font face="courier new, monospace">192.168.202.26<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Mon Aug 12
16:51:03 BST 2013 REC Gi1/0/3 </font></div>
<div><font face="courier new, monospace">192.168.202.27<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
2BB Gi4/0/21 </font></div>
<div><font face="courier new, monospace">192.168.202.28<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
2BB Gi1/0/5 </font></div>
<div><font face="courier new, monospace">192.168.202.29<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
1AD Gi2/0/12 </font></div>
<div><font face="courier new, monospace">192.168.202.30<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
2BB Gi3/0/14 </font></div>
<div><font face="courier new, monospace">192.168.202.31<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
1AD Gi2/0/14 </font></div>
<div><font face="courier new, monospace">192.168.202.32<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
2BB Gi4/0/24 </font></div>
<div><font face="courier new, monospace">192.168.202.33<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
</font></div>
<div><font face="courier new, monospace">192.168.202.34<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
2BB Gi3/0/21 </font></div>
<div><font face="courier new, monospace">192.168.202.35<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
2BB Gi3/0/19 </font></div>
<div><font face="courier new, monospace">192.168.202.36<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
2BB Gi3/0/17 </font></div>
<div><font face="courier new, monospace">192.168.202.37<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
2BB Gi3/0/8 </font></div>
<div><font face="courier new, monospace">192.168.202.38<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
REC Gi1/0/1 </font></div>
<div><font face="courier new, monospace">192.168.202.39<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
2BB Gi4/0/2 </font></div>
<div><font face="courier new, monospace">192.168.202.40<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
1AD Gi2/0/9 </font></div>
<div><font face="courier new, monospace">192.168.202.41<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
2BB Gi1/0/20 </font></div>
<div><font face="courier new, monospace">192.168.202.42<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
1AD Gi2/0/8 </font></div>
<div><font face="courier new, monospace">192.168.202.44<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
REC Gi1/0/4 </font></div>
<div><font face="courier new, monospace">192.168.202.45<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
REC Gi1/0/16 </font></div>
<div><font face="courier new, monospace">192.168.202.46<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
GMB Gi1/0/16 </font></div>
<div><font face="courier new, monospace">192.168.202.48<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
2BB Gi4/0/3 </font></div>
<div><font face="courier new, monospace">192.168.202.49<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
2BB Gi3/0/13 </font></div>
<div><font face="courier new, monospace">192.168.202.50<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
GMB Gi1/0/18 </font></div>
<div><font face="courier new, monospace">192.168.202.51<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
GMB Gi1/0/19 </font></div>
<div><font face="courier new, monospace">192.168.202.52<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
2BB Gi2/0/4 </font></div>
<div><font face="courier new, monospace">192.168.202.53<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
2BB Gi3/0/11 </font></div>
<div><font face="courier new, monospace">192.168.202.54<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
2BB Gi3/0/18 </font></div>
<div><font face="courier new, monospace">192.168.202.55<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
2BB Gi4/0/13 </font></div>
<div><font face="courier new, monospace">192.168.202.56<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
</font></div>
<div><font face="courier new, monospace">192.168.202.58<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since
</font></div>
<div><font face="courier new, monospace">192.168.202.59<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
</font></div>
<div><font face="courier new, monospace">192.168.202.60<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
2BB Gi1/0/15 </font></div>
<div><font face="courier new, monospace">192.168.202.61<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
3AB Gi1/0/10 </font></div>
<div><font face="courier new, monospace">192.168.202.62<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
2BB Gi4/0/18 </font></div>
<div><font face="courier new, monospace">192.168.202.63<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
</font></div>
<div><font face="courier new, monospace">192.168.202.64<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
2BB Gi3/0/16 </font></div>
<div><font face="courier new, monospace">192.168.202.65<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
RIV Gi1/0/19 </font></div>
<div><font face="courier new, monospace">192.168.202.66<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
RIV Gi1/0/20 </font></div>
<div><font face="courier new, monospace">192.168.202.67<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
</font></div>
<div><font face="courier new, monospace">192.168.202.68<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
2BB Gi4/0/1 </font></div>
<div><font face="courier new, monospace">192.168.202.69<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
2BB Gi4/0/5 </font></div>
<div><font face="courier new, monospace">192.168.202.70<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
RIV Gi1/0/1 </font></div>
<div><font face="courier new, monospace">192.168.202.72<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
REC Gi1/0/2 </font></div>
<div><font face="courier new, monospace">192.168.202.74<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
3AB Gi1/0/1 </font></div>
<div><font face="courier new, monospace">192.168.202.75<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
3AB Gi1/0/2 </font></div>
<div><font face="courier new, monospace">192.168.202.76<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
2BB Gi4/0/17 </font></div>
<div><font face="courier new, monospace">192.168.202.77<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
REC Gi2/0/19 </font></div>
<div><font face="courier new, monospace">192.168.202.78<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
1AD Gi2/0/13 </font></div>
<div><font face="courier new, monospace">192.168.202.79<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
1AD Gi2/0/16 </font></div>
<div><font face="courier new, monospace">192.168.202.83<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
GMB Gi1/0/8 </font></div>
<div><font face="courier new, monospace">192.168.202.250<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Sun Jan 27
01:05:18 GMT 2013 </font></div>
<div><font face="courier new, monospace">192.169.4.20<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since unknown
</font></div>
<div><font face="courier new, monospace">193.108.82.1<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Mon Aug 12
13:40:37 BST 2013</font> </div>
</div>
<div><br>
</div>
<div>This information is picked up from multiple log files. As you
can see the date, starting in field 4, is just the normal
no-options output from 'date'. I'd like to be able to filter this
file based on the date, newest dates first. I can get pretty close
to what I want but I'm struggling to filter down to the 'minute'
level. Here's what I mean.</div>
<div><br>
</div>
<div>Running the command:</div>
<div><br>
</div>
<blockquote style="margin:0px 0px 0px 40px;border:none;padding:0px">
<div>cat unsorted.tst | sort -k 9n -Mk5 -k6n -k7n | tac</div>
</blockquote>
<div><br>
</div>
<div>produces something very close to what I want, e.g:</div>
<div><br>
</div>
<div>
<div><font face="courier new, monospace">192.168.1.40<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Wed Aug 14
04:37:46 BST 2013 </font></div>
<div><font face="courier new, monospace">192.168.1.5<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Mon Aug 12
17:23:09 BST 2013 2BB Gi2/0/2 </font></div>
<div><font face="courier new, monospace">192.168.1.43<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Mon Aug 12
17:23:25 BST 2013 2BB Gi1/0/5 </font></div>
<div><font face="courier new, monospace">192.168.1.42<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Mon Aug 12
17:23:24 BST 2013 GMB Gi1/0/14 </font></div>
<div><font face="courier new, monospace">192.168.1.37<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Mon Aug 12
17:23:21 BST 2013 GMB Gi1/0/21 </font></div>
<div><font face="courier new, monospace">192.168.1.136<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Mon Aug 12
17:24:09 BST 2013 3AB Gi1/0/1 </font></div>
<div><font face="courier new, monospace">192.168.1.135<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Mon Aug 12
17:24:07 BST 2013 RIV Gi1/0/10 </font></div>
<div><font face="courier new, monospace">192.168.1.130<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Mon Aug 12
17:24:00 BST 2013 GMB Gi1/0/21 </font></div>
<div><font face="courier new, monospace">192.168.1.129<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Mon Aug 12
17:23:59 BST 2013 2BB Gi1/0/5 </font></div>
<div><font face="courier new, monospace">192.168.1.126<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Mon Aug 12
17:23:57 BST 2013 RIV Gi1/0/13 </font></div>
<div><font face="courier new, monospace">192.168.1.125<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Mon Aug 12
17:23:55 BST 2013 2BB Gi2/0/12 </font></div>
<div><font face="courier new, monospace">192.168.1.124<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Mon Aug 12
17:23:54 BST 2013 GMB Gi1/0/14 </font></div>
<div><font face="courier new, monospace">192.168.1.11<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Mon Aug 12
17:23:19 BST 2013 2BB Gi1/0/8 </font></div>
<div><font face="courier new, monospace">192.168.1.111<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Mon Aug 12
17:23:49 BST 2013 2BB Gi1/0/12 </font></div>
<div><font face="courier new, monospace">192.168.1.106<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Mon Aug 12
17:23:48 BST 2013 2BB Gi1/0/11 </font></div>
<div><font face="courier new, monospace">192.168.1.101<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Mon Aug 12
17:23:43 BST 2013 2BB Gi1/0/13 </font></div>
<div><font face="courier new, monospace">192.168.202.26<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Mon Aug 12
16:51:03 BST 2013 REC Gi1/0/3 </font></div>
<div><font face="courier new, monospace">192.168.1.4<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Mon Aug 12
16:55:49 BST 2013 2BB Gi1/0/4 </font></div>
<div><font face="courier new, monospace">192.168.1.188<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Mon Aug 12
16:50:22 BST 2013 2BB Gi1/0/5 </font></div>
<div><font face="courier new, monospace">192.168.1.137<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Mon Aug 12
16:49:56 BST 2013 3AB Gi1/0/4 </font></div>
<div><font face="courier new, monospace">192.168.1.133<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Mon Aug 12
16:49:48 BST 2013 RIV Gi1/0/1 </font></div>
<div><font face="courier new, monospace">192.168.0.12<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Mon Aug 12
16:45:40 BST 2013 GMB Gi1/0/24 </font></div>
<div><font face="courier new, monospace">193.108.82.1<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Mon Aug 12
13:40:37 BST 2013 </font></div>
<div><font face="courier new, monospace">192.168.202.12<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Thu Aug 1
14:53:02 BST 2013 2BB Gi4/0/11 </font></div>
<div><font face="courier new, monospace">192.168.0.211<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Thu Aug 1
09:54:58 BST 2013 REC Gi1/0/24 </font></div>
<div><font face="courier new, monospace">192.168.0.13<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Tue Jul 30
12:47:07 BST 2013 GMB Gi1/0/24 </font></div>
<div><font face="courier new, monospace">192.168.202.4<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Wed Jul 24
15:58:54 BST 2013 2BB Gi3/0/7 </font></div>
<div><font face="courier new, monospace">192.168.0.34<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Tue Jul 23
12:21:01 BST 2013 </font></div>
<div><font face="courier new, monospace">192.168.0.33<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Tue Jul 23
12:21:00 BST 2013 </font></div>
<div><font face="courier new, monospace">192.168.0.32<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Tue Jul 23
12:20:58 BST 2013 </font></div>
<div><font face="courier new, monospace">192.168.202.6<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Mon Jul 22
16:22:13 BST 2013 2BB Gi4/0/7 </font></div>
<div><font face="courier new, monospace">192.168.0.20<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Fri Jul 19
23:06:10 BST 2013 GMB Gi1/0/24 </font></div>
<div><font face="courier new, monospace">192.168.2.104<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Fri Jul 19
16:43:18 BST 2013 </font></div>
<div><font face="courier new, monospace">192.168.1.167<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Fri Jul 19
16:28:13 BST 2013 </font></div>
<div><font face="courier new, monospace">192.168.0.23<span
style="white-space:pre-wrap"> </span>hostname<span
style="white-space:pre-wrap"> </span>since Thu Jul 18
11:39:54 BST 2013 3AB Gi1/0/24</font> </div>
<div><br>
</div>
<div>but if you look closely you can see that the minutes and
hours are sometimes wrong in the Aug 12 rows. </div>
<div><br>
</div>
<div>I've experimented a lot with the -k7 option, dropping and
adding the 'n', and also after consulting the man page, trying
something like this:</div>
<div><br>
</div>
</div>
<blockquote style="margin:0px 0px 0px 40px;border:none;padding:0px">
<div>
<div>sort -k 9n -k5M -k6n -k7.1,7.2n -k7.4,7.5n -k7.7,7.8n</div>
<div><br>
</div>
</div>
</blockquote>
which I thought would sort by HH,MM,SS ignoring the colons, in the
time field. But it just produces a mess.
<div>
<br>
</div>
<div>Alternatives include sorting out the problem at source -
perhaps getting the original logfiles to include the date as
YYYYMMDDHHMMSS but that's a non-trivial process. plus, I can't
think I'm close but no cigar. I'm I missing something obvious with
the sort command? Is there another way of doing this? It's got to
drop into a shell script that gives me a daily report of host
uptime/downtimes.</div>
<span class="HOEnZb"><font color="#888888">
<div><br>
</div>
<div>Dougie</div>
</font></span>
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