DBUTIL: Unix software for accessing 1990 Census data on CD-ROM

Abstract

DBUTIL is a collection of subroutines written in C for accessing 1990 Census data on the Internet at the University of California. DBUTIL requires a Unix computer with NFS access to the Internet. 40 GB of data (83 CD-ROMs) are available, including:

	Summary Tape File 1A	18 CD-ROMs
	Summary Tape File 1C	1  CD-ROM
	Summary Tape File 3A	62 CD-ROMs
	Summary Tape File 3C	2  CD-ROMs

DBUTIL reads dBase-III DBF and NDX files on the CD-ROMs and produces formatted ASCII files, with data field descriptors, of the data selected by the user. As input to DBUTIL the user must create ASCII input files containing:

(1) the name of the data base, for example STF 3A;

(2) a list of the data elements (fields) desired;

(3) the geographic level of detail desired, for example census tracts;

(4) the geographic scope of the request, for example a list of counties in one or more states.

Input and output files, in the LBL CODATA format, are compatible with Lawrence Berkeley Laboratory's SEEDIS (Socio-Economic Environmental Demographic Information System).

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