This is the DIRA2 (Distributed Information Retrieval from Astronomical files) manual. The manual contains information useful both for the User and for the DBA (Data Base Administrator).

The manual is divided into 7 chapters.

The appendices contain the list of the catalogues available in DIRA2 format and items for reference purposes.

The users are strongly recommended to read chapters 1,2,5,6 before using massively DIRA2 with the existing catalogues. Chapter 3 and 4 can help to insert new data and to work with the Personal Data base.

To initialize DIRA2 environment enter: $ DIRA2

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