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Дата изменения: Fri Jan 17 12:43:26 1997
Дата индексирования: Tue Oct 2 01:07:09 2012
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Поисковые слова: reflection nebula
Removing multiple occurrences of a line

Removing multiple occurrences of a line

Used with its -u option the sort command removes duplicate lines from a file. For example:

   sort -u -o mail/labels addresses

This removes all duplicate lines from the file addresses and places the output in the file mail/labels.

Duplicate lines do not have to be consecutive for the sort command to identify and remove them.

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