CODEWITHSUNDEEP
perlsortinggnu
Michael Sweetser
Michael Sweetser

Reputation: 69

Perl - Sorting In UNIX Different From Windows

I'm having issues sorting in Perl having different results in Windows and Unix.

The characters are: a - _ 1 2

In Windows: _ 1 2 - a
In Unix: _ - 1 2 a

I'm guessing the locale has something to do with this - what can I do to make the Unix sort match the Windows sort?

Thanks!

Upvotes: 1

Views: 495

Answers (2)

choroba
choroba

Reputation: 241918

If you do not want to use locale, comment out the line containing

use locale;

Without such a line, sort in Perl should behave the same on both Windows and Unix.

You can also add

no locale;

before the sort (or, better, enclose the sort into a block starting with it).

Upvotes: 0

ikegami
ikegami

Reputation: 385897

The docs say:

*** WARNING *** The locale specified by the environment affects sort order. Set LC_ALL=C to get the traditional sort order that uses native byte values.

so use

LC_ALL=C sort ...

Example:

$ perl -E'say for @ARGV' a - _ 1 2 | LC_ALL=en_US.UTF-8 sort
_
-
1
2
a

$ perl -E'say for @ARGV' a - _ 1 2 | LC_ALL=C sort
-
1
2
_
a

Upvotes: 2

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