bug#12907: Possible Bug in sort core utility

[Coffey, Terrence (Terrence) **CTR**]

Hi,
I think I might have located a bug. I'm using Redhat 6.3.
I'm try to get a listing of dot file sorted by date and all other files sorted 
by date. I'd like all the dot file to appears before all other files.
Initially I was testing on 6.2 and noticed that the .(dot) files were not 
passed to sort. However this issue is fixed in 6.3.
However it does not appear to be able to sort dot files. The filename is key 11 
so I was expecting to see all the dot files group together
Either at the start or end and to have these groups sorted chronographically. 
I've tried -k11 with and without d.

I've also tried to do a reverse sort but it did not seem to get the desired 
result. I'm not sure if I'm not using the options correctly
Or whether it's a bug.

If you need some additional data, just let me know.
Thanks
Terence

uname -a
Linux RHEL63TEMP3942 2.6.32-279.el6.x86_64 #1 SMP Wed Jun 13 18:24:36 EDT 2012 
x86_64 x86_64 x86_64 GNU/Linux
address@hidden tmp]$

address@hidden tmp]$ ls -Asl  /tmp |sort -k11 -k7M -k8n -k9,10
total 76
0 -rw-------. 1 root   root      0 Nov  9 15:06 yum.log
4 -r--r--r--. 1 root   root     11 Nov  9 17:37 .X0-lock
4 drwx------. 2 WFUser WFUser 4096 Nov  9 17:39 .esd-500
4 drwx------. 2 WFUser WFUser 4096 Nov  9 17:39 keyring-nQ6lMb
4 drwx------. 2 gdm    gdm    4096 Nov  9 17:39 orbit-gdm
4 drwx------. 2 WFUser WFUser 4096 Nov  9 17:39 pulse-g9SlRO3UEqGg
4 drwx------. 2 WFUser WFUser 4096 Nov  9 17:39 virtual-WFUser.AVmQkN
4 drwx------. 2 gdm    gdm    4096 Nov  9 17:40 pulse-Jkx9hhtHj4dy
4 drwx------. 2 WFUser WFUser 4096 Nov  9 18:20 orbit-WFUser
4 drwxrwxrwt. 2 root   root   4096 Nov  9 18:35 .ICE-unix
4 drwx------. 2 root   root   4096 Nov  9 18:35 keyring-kjLYun
4 drwx------. 2 root   root   4096 Nov  9 18:35 orbit-root
4 drwx------. 2 root   root   4096 Nov  9 18:35 pulse-TSaTZvcbd1kc
4 drwx------. 2 root   root   4096 Nov  9 18:35 ssh-BRSEI10523
4 drwxrwxrwt. 2 root   root   4096 Nov  9 18:35 .X11-unix
4 -r--r--r--. 1 root   root     11 Nov  9 18:35 .X2-lock
4 -rw-rw-r--. 1 WFUser WFUser    5 Nov 16 18:14 .tc
4 -rw-rw-r--. 1 WFUser WFUser    5 Nov 16 18:14 .tc2
4 -rw-rw-r--. 1 WFUser WFUser    5 Nov 16 18:15 .tc4
4 -rw-rw-r--. 1 WFUser WFUser    5 Nov 16 18:18 .tc3


address@hidden tmp]$ ls -Asl  /tmp |sort -k11d -k7M -k8n -k9,10
total 76
0 -rw-------. 1 root   root      0 Nov  9 15:06 yum.log
4 -r--r--r--. 1 root   root     11 Nov  9 17:37 .X0-lock
4 drwx------. 2 WFUser WFUser 4096 Nov  9 17:39 .esd-500
4 drwx------. 2 WFUser WFUser 4096 Nov  9 17:39 keyring-nQ6lMb
4 drwx------. 2 gdm    gdm    4096 Nov  9 17:39 orbit-gdm
4 drwx------. 2 WFUser WFUser 4096 Nov  9 17:39 pulse-g9SlRO3UEqGg
4 drwx------. 2 WFUser WFUser 4096 Nov  9 17:39 virtual-WFUser.AVmQkN
4 drwx------. 2 gdm    gdm    4096 Nov  9 17:40 pulse-Jkx9hhtHj4dy
4 drwx------. 2 WFUser WFUser 4096 Nov  9 18:20 orbit-WFUser
4 drwxrwxrwt. 2 root   root   4096 Nov  9 18:35 .ICE-unix
4 drwx------. 2 root   root   4096 Nov  9 18:35 keyring-kjLYun
4 drwx------. 2 root   root   4096 Nov  9 18:35 orbit-root
4 drwx------. 2 root   root   4096 Nov  9 18:35 pulse-TSaTZvcbd1kc
4 drwx------. 2 root   root   4096 Nov  9 18:35 ssh-BRSEI10523
4 drwxrwxrwt. 2 root   root   4096 Nov  9 18:35 .X11-unix
4 -r--r--r--. 1 root   root     11 Nov  9 18:35 .X2-lock
4 -rw-rw-r--. 1 WFUser WFUser    5 Nov 16 18:14 .tc
4 -rw-rw-r--. 1 WFUser WFUser    5 Nov 16 18:14 .tc2
4 -rw-rw-r--. 1 WFUser WFUser    5 Nov 16 18:15 .tc4
4 -rw-rw-r--. 1 WFUser WFUser    5 Nov 16 18:18 .tc3
address@hidden tmp]$


address@hidden tmp]$ ls -Asl  /tmp |sort -r -k11d -k7M -k8n -k9,10
total 76
4 -r--r--r--. 1 root   root     11 Nov  9 18:35 .X2-lock
4 drwxrwxrwt. 2 root   root   4096 Nov  9 18:35 .X11-unix
4 drwx------. 2 root   root   4096 Nov  9 18:35 ssh-BRSEI10523
4 drwx------. 2 root   root   4096 Nov  9 18:35 pulse-TSaTZvcbd1kc
4 drwx------. 2 root   root   4096 Nov  9 18:35 orbit-root
4 drwx------. 2 root   root   4096 Nov  9 18:35 keyring-kjLYun
4 drwxrwxrwt. 2 root   root   4096 Nov  9 18:35 .ICE-unix
4 drwx------. 2 WFUser WFUser 4096 Nov  9 18:20 orbit-WFUser
4 drwx------. 2 gdm    gdm    4096 Nov  9 17:40 pulse-Jkx9hhtHj4dy
4 drwx------. 2 WFUser WFUser 4096 Nov  9 17:39 virtual-WFUser.AVmQkN
4 drwx------. 2 WFUser WFUser 4096 Nov  9 17:39 pulse-g9SlRO3UEqGg
4 drwx------. 2 gdm    gdm    4096 Nov  9 17:39 orbit-gdm
4 drwx------. 2 WFUser WFUser 4096 Nov  9 17:39 keyring-nQ6lMb
4 drwx------. 2 WFUser WFUser 4096 Nov  9 17:39 .esd-500
4 -r--r--r--. 1 root   root     11 Nov  9 17:37 .X0-lock
0 -rw-------. 1 root   root      0 Nov  9 15:06 yum.log
4 -rw-rw-r--. 1 WFUser WFUser    5 Nov 16 18:18 .tc3
4 -rw-rw-r--. 1 WFUser WFUser    5 Nov 16 18:15 .tc4
4 -rw-rw-r--. 1 WFUser WFUser    5 Nov 16 18:14 .tc2
4 -rw-rw-r--. 1 WFUser WFUser    5 Nov 16 18:14 .tc
address@hidden tmp]$