Date Sorting

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Original Message

Name: Blaise
Date: July 9, 2008 at 20:46:29 Pacific
Subject: Date Sorting
OS: UNIX Sun Solaris
CPU/Ram: NA
Model/Manufacturer: NA

Comment:

Hi there,
Im doing a date sort for the following using:
sort -k4,4 -k3,3M -k2,2 -k5,5
(Sorting by year, month, date then time)
john 12 Jul 2008 23:30
grace 19 Apr 2008 23:30
mary 01 Jun 2008 01:00
tim 20 Apr 2009 22:00
steven 19 Apr 2008 23:01
henry 17 Aug 2008 11:00
This works out perfectly but i cant seem to sort them in reverse order. I tried slotting in -r and -rk but doesnt seem to work. Any idea how can i get my command to sort in reverse order? Pls help - thanks.

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Response Number 1

Name: nails
Date: July 9, 2008 at 23:35:21 Pacific

Reply: (edit)

This works on Solaris 9, ksh:

sort -r -k 4,4 -M -k3,3 -k 2,2 -k 5,5 sortdata
I think the placement of -M is important.

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Response Number 2

Name: Blaise
Date: July 13, 2008 at 20:28:10 Pacific

Reply: (edit)

Great stuff nails, thanks! :)

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