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Sorting a list of words one per line by their ending

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# 1  
Old 10-07-2013
Sorting a list of words one per line by their ending
Hello,
My OS is Windows and therefore DOS. Hence I have no access to Unix tools.
I am trying to sort a file in Urdu by the character by which it ends. Each word is on a separate line.
As input, an example in English would help:
Code:
fruit
banana
apple
pear
house

I need the sort to be on the last letter of the word and then sorted recursively in reverse order
Code:
banana
apple
house
pear
fruit

A script in PERL or AWK would do just great.
Just in case someone wants to work with live data, here is a sample:
Code:
ببا
ببجا
ببچو
ببد
ببر
ببڑ
ببز
ببستگيا
ببلا
ببلو
ببلے
ببلی
ببند
ببنسلکلگے
ببنسلکلئ
ببهنو
ببہتر
ببھا
ببھر
ببھی
ببو
ببيا
ببيشتر
ببے
ببی
بپا
بپتا
بپتسما
بپد
بپر
بپفسر
بپلی
بپھر
بپو
بتا
بتبا
بتتر
بتتے
بتتی
بتجد
بتجو
بتحقی
بتخے
بتد
بتذ
بتر
بتز
بتستا
بتصحی
بتصر
بتطا
بتعثنا

Many thanks
# 2  
Old 10-07-2013
Quote:
Originally Posted by gimley
Hence I have no access to Unix tools.
[...]
A script in PERL or AWK would do just great.
Isn't that somewhat contradictory? As it is, awk is a UNIX tool, no?

If you have awk you probably have sort too (or can get it). I do not know Urdu, so please forgive me if i ask: is Urdu written backwards (right to left)? If so, you might want to know that LC_ALL and all the other internationalization variables influence the operation of sort. Might it be that, if you properly set these variables to the correct language, the sorting is already done from the other side?

I hope this helps.

bakunin
This User Gave Thanks to bakunin For This Post:
gimley
# 3  
Old 10-07-2013
I agree with bakunin, let the locale do all the work if possible.
Just in case the OP means something different, a Perl code that sorts
by the last letter:
Code:
perl -e'
  print map $_->[0],
    sort {
      $a->[1] cmp $b->[1]
     }
      map {
       [ $_, substr $_, -2, 1 ]
        } <>' infile

This User Gave Thanks to radoulov For This Post:
gimley
# 4  
Old 10-07-2013
Many thanks for your advice and the perl code. Off the record
Code:
AWK

is the only tool I know which has been configured for Windows.
Code:
SED

works but to a limit, unfortunately.
Urdu is written right to left. How do I set LC_ALL for sorting? Any solutions ?
The PERL script works wonderfully for English /Latin data but does not work for Urdu ?
Many thanks once more
# 5  
Old 10-07-2013
No short answer, sorry. Check this thread. I suppose you'll need to try with the ur-PK locale.
Edit: It seems that ur-PK is not currently available for Unicode::Collate::Local ...
# 6  
Old 10-07-2013
Try busybox and then
Code:
rev file | sort | rev
banana
apple
house
pear
fruit

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