Footnotes

(1)

If you use a non-POSIX locale (e.g., by setting LC_ALL to `en_US'), then sort may produce output that is sorted differently than you're accustomed to. In that case, set the LC_ALL environment variable to `C'. Note that setting only LC_COLLATE has two problems. First, it is ineffective if LC_ALL is also set. Second, it has undefined behavior if LC_CTYPE (or LANG, if LC_CTYPE is unset) is set to an incompatible value. For example, you get undefined behavior if LC_CTYPE is ja_JP.PCK but LC_COLLATE is en_US.UTF-8.

(2)

If you use a non-POSIX locale (e.g., by setting LC_ALL to `en_US'), then ls may produce output that is sorted differently than you're accustomed to. In that case, set the LC_ALL environment variable to `C'.

(3)

Redhat Linux 6.1, for the November 2000 revision of this article.