(RT--11 Volume and File Formats Manual) <order_number>(AA--PD6PA--TC) <abstract>(August 1991) <line> This manual describes the format of RT--11 disk and magtape volumes and the RT--11 file formats. This information will be most useful to system programmers, but it provides valuable background information for application programmers as well. <endabstract> <revision_info>( Revision/Update Information:\This manual replaces Chapters 8 and 9 of the <emphasis>(RT--11 Software Support Manual).) <revision_info>(Operating System:\RT--11 Version 5.6) <ENDTITLE_PAGE> <copyright_page> <comment> This copyright page works. All you have to do is 1. Edit in the appropriate date in two places (at the print_date and at the copyright_date tags) 2. Put in your book ID number at the endcopyright_page tag. <endcomment> <COPYRIGHT_PAGE_FORMATTING>(CONTROLLED) <PRINT_DATE>(First Printing, August 1991) The information in this document is subject to change without notice and should not be construed as a commitment by Digital Equipment Corporation. Digital Equipment Corporation assumes no responsibility for any errors that may appear in this document. Any software described in this document is furnished under a license and may be used or copied only in accordance with the terms of such license. No responsibility is assumed for the use or reliability of software or equipment that is not supplied by Digital Equipment Corporation or its affiliated companies. Restricted Rights: Use, duplication, or disclosure by the U.S. Government is subject to restrictions as set forth in subparagraph (c)(1)(ii) of the Rights in Technical Data and Computer Software clause at DFARS 252.227--7013. <COPYRIGHT_DATE>(1991\Digital Equipment Corporation) <line> All rights reserved. Printed in U.S.A. The Reader's Comments form at the end of this document requests your critical evaluation to assist in preparing future documentation. The following are trademarks of Digital Equipment Corporation: CTS--300, DDCMP, DECnet, DECUS, DECwriter, DIBOL, MASSBUS, MicroPDP--11, Micro/RSX, PDP, Professional, Q-bus, RSTS, RSX, RT--11, RTEM--11, UNIBUS, VMS, VT, and the DIGITAL Logo. <vertical_space>(fill) <document_acknowledgment>(brief) <ENDCOPYRIGHT_PAGE>(S561) <contents_file> <preface>(9) <HEAD1>(Document Structure) This manual is divided into two chapters: <list>(unnumbered) <le> Chapter 1 describes the file structure for all disk and magtape volumes that RT--11 supports. <le> Chapter 2 alphabetically presents information about the structure of supported file formats. <endlist> <head1>(Audience) This manual is written for those users of the RT--11 operating system who want to understand the structure of RT--11 volume and file formats. <HEAD1>(Conventions\Conventions) The following conventions are used in this manual. <TABLE> <TABLE_SETUP>(2\15) <TABLE_HEADS>(Convention\Meaning) <TABLE_ROW>(Black print\ In examples, black print indicates output lines or prompting characters that the system displays. For example: <interactive> <s>(.)(BACKUP/INITIALIZE DL0:F*.FOR DU1:WRK) <S>(Mount output volume in DU1:; continue?) (Y) <endinteractive>) <TABLE_ROW>(Red print\ In examples, red print indicates user input.) <TABLE_ROW>( Braces ({ }) \In command syntax examples, braces enclose options that are mutually exclusive. You can choose only one option from the group of options that appear in braces.) <TABLE_ROW>(Brackets ([ ])\ Square brackets in a format line represent optional parameters, qualifiers, or values, unless otherwise specified. ) <TABLE_ROW>(Lowercase <line> characters\ In command syntax examples, lowercase characters represent elements of a command for which you supply a value. For example: <code_example> DELETE filespec <endcode_example>) <TABLE_ROW>(UPPERCASE <LINE> characters\ In command syntax examples, uppercase characters represent elements of a command that should be entered exactly as given.) <TABLE_ROW>(<BOX>(RET)\ <box>(RET) in examples represents the RETURN key. Unless the manual indicates otherwise, terminate all commands or command strings by pressing <key>(RET).) <TABLE_ROW>(<BOX>(CTRL/<VARIABLE>(x))\ <BOX>(CTRL/<VARIABLE>(x)) indicates a control key sequence. While pressing the key labeled Ctrl, press another key. For example: <BOX>(CTRL/C)) <ENDTABLE> <head1>(Associated Documents) <line> Basic Books <list>(unnumbered) <LE> <REFERENCE>(INT_book) <LE> <REFERENCE>(GUI_book) <LE> <REFERENCE>(KED_book) <LE> <REFERENCE>(KEDC_book) <LE> <REFERENCE>(SUG_book) <LE> <REFERENCE>(MRM_book) <LE> <REFERENCE>(MAS_book) <LE> <REFERENCE>(MSG_book) <LE> <REFERENCE>(SRN_book) <ENDLIST> <line> Installation Specific Books <list>(unnumbered) <LE> <REFERENCE>(AUT_book) <LE> <REFERENCE>(INS_book) <LE> <REFERENCE>(SYG_book) <ENDLIST> <line> Programmer Oriented Books <list>(unnumbered) <le> <REFERENCE>(IND_book) <LE> <REFERENCE>(SUM_book) <LE> <REFERENCE>(SML_book) <LE> <REFERENCE>(SSL_book) <le> <reference>(sim_book) <LE> <REFERENCE>(DEV_book) <LE> <REFERENCE>(DBG_book) <ENDlist> <ENDPREFACE> <ENDFRONT

(Note the reversal around /Charlie) (edited 14-Mar-91) (filefm) (RT--11 Volume and File Formats Manual) <order_number>(AA--PD6PA--TC) <abstract>(August 1991) <line> This manual describes the format of RT--11 disk and magtape volumes and the RT--11 file formats. This information will be most useful to system programmers, but it provides valuable background information for application programmers as well. <endabstract> <revision_info>( Revision/Update Information:\This manual replaces Chapters 8 and 9 of the <emphasis>(RT--11 Software Support Manual).) <revision_info>(Operating System:\RT--11 Version 5.6) <ENDTITLE_PAGE> <copyright_page> <comment> This copyright page works. All you have to do is 1. Edit in the appropriate date in two places (at the print_date and at the copyright_date tags) 2. Put in your book ID number at the endcopyright_page tag. <endcomment> <COPYRIGHT_PAGE_FORMATTING>(CONTROLLED) <PRINT_DATE>(First Printing, August 1991) The information in this document is subject to change without notice and should not be construed as a commitment by Digital Equipment Corporation. Digital Equipment Corporation assumes no responsibility for any errors that may appear in this document. Any software described in this document is furnished under a license and may be used or copied only in accordance with the terms of such license. No responsibility is assumed for the use or reliability of software or equipment that is not supplied by Digital Equipment Corporation or its affiliated companies. Restricted Rights: Use, duplication, or disclosure by the U.S. Government is subject to restrictions as set forth in subparagraph (c)(1)(ii) of the Rights in Technical Data and Computer Software clause at DFARS 252.227--7013. <COPYRIGHT_DATE>(1991\Digital Equipment Corporation) <line> All rights reserved. Printed in U.S.A. The Reader's Comments form at the end of this document requests your critical evaluation to assist in preparing future documentation. The following are trademarks of Digital Equipment Corporation: CTS--300, DDCMP, DECnet, DECUS, DECwriter, DIBOL, MASSBUS, MicroPDP--11, Micro/RSX, PDP, Professional, Q-bus, RSTS, RSX, RT--11, RTEM--11, UNIBUS, VMS, VT, and the DIGITAL Logo. <vertical_space>(fill) <document_acknowledgment>(brief) <ENDCOPYRIGHT_PAGE>(S561) <contents_file> <preface>(9) <HEAD1>(Document Structure) This manual is divided into two chapters: <list>(unnumbered) <le> Chapter 1 describes the file structure for all disk and magtape volumes that RT--11 supports. <le> Chapter 2 alphabetically presents information about the structure of supported file formats. <endlist> <head1>(Audience) This manual is written for those users of the RT--11 operating system who want to understand the structure of RT--11 volume and file formats. <HEAD1>(Conventions\Conventions) The following conventions are used in this manual. <TABLE> <TABLE_SETUP>(2\15) <TABLE_HEADS>(Convention\Meaning) <TABLE_ROW>(Black print\ In examples, black print indicates output lines or prompting characters that the system displays. For example: <interactive> <s>(.)(BACKUP/INITIALIZE DL0:F*.FOR DU1:WRK) <S>(Mount output volume in DU1:; continue?) (Y) <endinteractive>) <TABLE_ROW>(Red print\ In examples, red print indicates user input.) <TABLE_ROW>( Braces ({ }) \In command syntax examples, braces enclose options that are mutually exclusive. You can choose only one option from the group of options that appear in braces.) <TABLE_ROW>(Brackets ([ ])\ Square brackets in a format line represent optional parameters, qualifiers, or values, unless otherwise specified. ) <TABLE_ROW>(Lowercase <line> characters\ In command syntax examples, lowercase characters represent elements of a command for which you supply a value. For example: <code_example> DELETE filespec <endcode_example>) <TABLE_ROW>(UPPERCASE <LINE> characters\ In command syntax examples, uppercase characters represent elements of a command that should be entered exactly as given.) <TABLE_ROW>(<BOX>(RET)\ <box>(RET) in examples represents the RETURN key. Unless the manual indicates otherwise, terminate all commands or command strings by pressing <key>(RET).) <TABLE_ROW>(<BOX>(CTRL/<VARIABLE>(x))\ <BOX>(CTRL/<VARIABLE>(x)) indicates a control key sequence. While pressing the key labeled Ctrl, press another key. For example: <BOX>(CTRL/C)) <ENDTABLE> <head1>(Associated Documents) <line> Basic Books <list>(unnumbered) <LE> <REFERENCE>(INT_book) <LE> <REFERENCE>(GUI_book) <LE> <REFERENCE>(KED_book) <LE> <REFERENCE>(KEDC_book) <LE> <REFERENCE>(SUG_book) <LE> <REFERENCE>(MRM_book) <LE> <REFERENCE>(MAS_book) <LE> <REFERENCE>(MSG_book) <LE> <REFERENCE>(SRN_book) <ENDLIST> <line> Installation Specific Books <list>(unnumbered) <LE> <REFERENCE>(AUT_book) <LE> <REFERENCE>(INS_book) <LE> <REFERENCE>(SYG_book) <ENDLIST> <line> Programmer Oriented Books <list>(unnumbered) <le> <REFERENCE>(IND_book) <LE> <REFERENCE>(SUM_book) <LE> <REFERENCE>(SML_book) <LE> <REFERENCE>(SSL_book) <le> <reference>(sim_book) <LE> <REFERENCE>(DEV_book) <LE> <REFERENCE>(DBG_book) <ENDlist> <ENDPREFACE> <ENDFRONT_MATTER>