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Annotation of coherent/a/usr/man/COHERENT/dd, revision 1.1

1.1     ! root        1: 
        !             2: 
        !             3: dd                           Command                           dd
        !             4: 
        !             5: 
        !             6: 
        !             7: 
        !             8: File conversion
        !             9: 
        !            10: dddd [_o_p_t_i_o_n=_v_a_l_u_e] ...
        !            11: 
        !            12: dd copies  an input file to an output  file, while performing re-
        !            13: quested conversions.  Options include case and character set con-
        !            14: versions, byte  swapping conversion for other  machines, and dif-
        !            15: ferent input  and output buffer  sizes.  dd can be  used with raw
        !            16: disk files  or raw tape  files to do efficient  copies with large
        !            17: block  (record) sizes.   Read and write  requests can  be changed
        !            18: with the bs option described below.
        !            19: 
        !            20: The  following list  gives  each available  option.  Any  numbers
        !            21: which specify  block sizes  or seek  positions may be  written in
        !            22: several ways.  A  number followed by w, b, or  k is multiplied by
        !            23: two  (for words),  512 (for  blocks),  or 1,024  (for kilobytes),
        !            24: respectively, to  obtain the size in bytes.  A  pair of such num-
        !            25: bers separated  by x is multiplied together  to produce the size.
        !            26: All buffer sizes default to 512 bytes if not specified.
        !            27: 
        !            28: bbss=_n    Set the size of the buffer for both input and output to n
        !            29:         bytes.
        !            30: 
        !            31: ccbbss=_n   Set the conversion buffer size to n bytes (used only with
        !            32:         character set conversions between ASCII and EBCDIC).
        !            33: 
        !            34: ccoonnvv=_l_i_s_t
        !            35:         Perform  conversions  specified  by  the  comma-separated
        !            36:         list, which may include the following:
        !            37: 
        !            38:         aasscciiii          Convert EBCDIC to ASCII.
        !            39:         eebbccddiicc         Convert ASCII to EBCDIC.
        !            40:         iibbmm            Convert ASCII to EBCDIC, IBM flavor.
        !            41:         llccaassee          Convert upper case to lower.
        !            42:         nnooeerrrroorr        Continue processing on I/O errors.
        !            43:         sswwaabb           Swap every pair of bytes before output.
        !            44:         ssyynncc           Pad input buffers with 0 bytes to size of iibbss.
        !            45:         uuccaassee          Convert lower case to upper.
        !            46: 
        !            47: 
        !            48: ccoouunntt=_n
        !            49:         Copy a maximum of n input records.
        !            50: 
        !            51: ffiilleess=_n
        !            52:         Copy a  maximum of  n input  files (useful  for multifile
        !            53:         tapes).
        !            54: 
        !            55: iibbss=_n   Set the  input buffer size  to n (normally  used if input
        !            56:         and output blocking sizes are to be different).
        !            57: 
        !            58: iiff=_f_i_l_e
        !            59:         Open file for input;  the standard input is  used when no
        !            60:         if= option is given.
        !            61: 
        !            62: 
        !            63: 
        !            64: COHERENT Lexicon                                           Page 1
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        !            67: 
        !            68: 
        !            69: dd                           Command                           dd
        !            70: 
        !            71: 
        !            72: 
        !            73: oobbss=_n   Set the output buffer size to n.
        !            74: 
        !            75: ooff=_f_i_l_e
        !            76:         Open file for output; the standard output is used when no
        !            77:         of= option is given.
        !            78: 
        !            79: sseeeekk=_n  Seek to position  n bytes into the  output before copying
        !            80:         (does  not  work  on stream  data  such  as  tapes,  com-
        !            81:         munications devices, and pipes).
        !            82: 
        !            83: sskkiipp=_n  Read and discard the first n input records.
        !            84: 
        !            85: ***** See Also *****
        !            86: 
        !            87: ASCII, commands, conv, cp, tape, tr
        !            88: 
        !            89: ***** Diagnostics *****
        !            90: 
        !            91: The command  reports the number of full  and partial buffers read
        !            92: and written upon completion.
        !            93: 
        !            94: ***** Notes *****
        !            95: 
        !            96: Because  of differing interpretations  of EBCDIC,  especially for
        !            97: certain more  exotic graphic characters such  as braces and back-
        !            98: slash,  no one  conversion  table will  be adequate  for all  ap-
        !            99: plications.   The ebcdic  table is the  American Standard  of the
        !           100: Business  Equipment  Manufacturers  Association.  The  ibm  table
        !           101: seems to be more practical for line printer codes at many IBM in-
        !           102: stallations.
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        !           130: COHERENT Lexicon                                           Page 2
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