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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/share/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).

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