sorting - Unix sort treatment of underscore character -

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I have two Linux machines, on which Unix sort starts behaving differently. I believe I have limited it to the treatment of underscore character.

If I run sort tmp , where tmp has the following two rows: 

  aa_d_hh aa_dh_ey
< P> A machine output 

  aa_d_hh aa_dh_ey

(i.e. '_' precedes 'H') while other output 

  Aa_dh_ey aa_d_hh

(i.e. 'H' first '_'). I need to deal with these machines together (as I use sort-M, later to merge very large files).

Is there any way to force me to behave in some way?

Thank you.

You can set LC_COLLATE on the traditional sort order only for your command For: 

  env LC_COLLATE = c-sort tmp

This does not change the current environment, in which the sort command is executed. You should have the same behavior with it.


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