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NAME
     sq - squeeze a sorted word list unsq -  unsqueeze  a  sorted
     word list

SYNOPSIS
     sq < infile > outfile

     unsq < infile > outfile

DESCRIPTION
     sq compresses a sorted list of  words  (a  dictionary).  For
     example:
          sort /usr/dict/words | sq | compress > words.sq.Z
     will compress dict by about a factor of 4.

     unsq uncompress the output of sq. For example:
          compress -d < words.sq.Z | unsq | sort -f -o words
     will uncompress a dictionary compressed with sq.

     The squeezing is achieved by  eliminating  common  prefixes,
     and replacing them with a single character which encodes the
     number of characters shared with the  preceding  word.   The
     prefix size is encoded as a single printable character:  0-9
     represent 0-9, A-Z represent 10-35, and a-z represent 36-61.

AUTHOR
     Mike Wexler

SEE ALSO
     compress(1), sort(1).

Партнёры:

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