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SuSE 11.3 - man page for unsq (suse section 1)

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SQ(1)											    SQ(1)

       sq, unsq - squeeze or unsqueeze a sorted word list

       sq < infile > outfile

       unsq < infile > outfile

       sq compresses a sorted list of words (a dictionary).  For example:
	      sort -u /usr/dict/words | sq | gzip -9 > words.sq.Z
       will compress dict by about a factor of 5.

       unsq uncompress the output of sq.  For example:
	      gunzip < words.sq.gz | 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 pre-
       fix  size  is  encoded  as  a single printable character: 0-9 represent 0-9, A-Z represent
       10-35, and a-z represent 36-61.

       sq and unsq can only handle words of up to 256 characters.  The input must be sorted,  and
       duplicates must be suppressed.

       Mike Wexler

       compress(1), sort(1).

					      LOCAL					    SQ(1)
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