Purpose: discuss the Unix environment variable LANG -
what its purpose is, what problems can be encountered
when using it, etc.

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[MAKR] attempts (2009-01-30): The environment variable `LANG` is part of the set of [internationalization] (sometimes abbreviated [i18n]) variables of [POSIX]. For a definition see there, e.g. at [http://www.opengroup.org/onlinepubs/009695399/basedefs/xbd_chap08.html#tag_08_02], and for the [localization] topic in general see e.g. here [http://www.opengroup.org/onlinepubs/009695399/basedefs/xbd_chap07.html].

To set the default POSIX locale:
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set env(LANG) C
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Sometimes that is not enough, and [LC_ALL] must be set, too:
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set env(LC_ALL) C
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%| [Category Unix] | [Category Local] |%
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