Re: Sorting IP addresses
Re: Sorting IP addresses
- Subject: Re: Sorting IP addresses
- From: Graff <email@hidden>
- Date: Sun, 21 Dec 2003 02:19:45 -0500
I changed it around a bit and this seems to work fine also:
sort -n -t '.' -k 1,1 -k 2,2 -k 3,3 -k 4,4 unsortedfile -o
sortedfile
Not only that but it takes under 1 second to perform a sort on a file
of 10,000 lines of 1 IP number per line. The best AppleScript sort
implementation takes 72 seconds just for the sort, in addition to a
minute or two for massaging the data to and from a format necessary for
sorting. So I would estimate that doing it as a pure AppleScript as
opposed to a "do shell script" would take a factor of at least 150
times as long for a list of 10,000 items.
I would say that if you are running Mac OS X then use "do shell script"
to do the sorting. It is much simpler and faster than any other method
I have seen:
------------
property FILE_NAME : "sorted"
set unsortedFile to choose file
set unsortedPOSIX to the quoted form of the POSIX path of unsortedFile
set baseWritefile to ((path to desktop) as text) & FILE_NAME
set writeFile to baseWritefile & ".txt"
set attemptNumber to 0
tell application "Finder"
repeat while (exists file writeFile)
set attemptNumber to attemptNumber + 1
set writeFile to baseWritefile & " - " & ((attemptNumber) as text) &
".txt"
end repeat
end tell
set sortedPOSIX to the quoted form of the POSIX path of writeFile
do shell script "sort -n -t '.' -k 1,1 -k 2,2 -k 3,3 -k 4,4 " &
unsortedPOSIX & " -o " & sortedPOSIX
------------
- Ken
On Dec 21, 2003, at 12:12 AM, Deivy Petrescu wrote:
At 3:46 PM -0500 12/20/03, Graff wrote:
This will do it, it seems that you need to assign a start and an end
to the keys:
sort -n -t . -k 1,1n -k 2,2n -k 3,3n -k 4,4n
~/Desktop/unsortedIP.txt -o ~/Desktop/sortedIP.txt
- Ken
I tried that but did not get the right end of fields for k. Actually,
looking at them I would not have guessed.
Thanks a lot
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