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MAP_DB(September, 1999)				       MAP_DB(September, 1999)

NAME
       map_db -	read a FASTA (0), GENBANK flat file (1)	PIR/VMS	(5) or GCG bi-
       nary  (6) sequence database and produce the offsets necessary for effi-
       cient memory mapping.

SYNOPSIS
       map_db [-n] filename | "filename	libtype"

DESCRIPTION
       map_db filename reads the sequence database in filename and  produce  a
       new  file  filename.xin with the	offset information necessary for effi-
       cient memory mapping.

       The programs in fasta version 32t08 can use memory mapped i/o  to  load
       sequence	 database  files and read them efficiently.  Memory mapping is
       used only if a ".xin" file is available.	 The ".xin" file is created by
       map_db.

       In addition to map_db, list_db is available  to	display	 the  database
       size, etc, and set of offsets calculated	by map_db.

OPTIONS
       -n     Read file	as DNA database.

BUGS
AUTHOR
       Bill Pearson
       wrp@virginia.EDU

						       MAP_DB(September, 1999)

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