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+--------+-------------------------+-------------------------+--------+--------+
|00000000| 00 20 20 20 20 20 20 20 | 20 20 20 20 00 00 01 00 |.       |    ....|
|00000010| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000020| 00 44 55 50 55 53 52 20 | 20 43 4f 4d 01 00 04 00 |.DUPUSR | COM....|
|00000030| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000040| 00 44 55 50 55 53 52 20 | 20 44 4f 43 05 00 0d 00 |.DUPUSR | DOC....|
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|000000a0| 68 00 21 6d 00 1e 00 7e | 23 d6 30 da 3e 01 fe 0a |h.!m...~|#.0.>...|
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|000000d0| 01 0e 09 cd 05 00 c3 00 | 00 49 6e 76 61 6c 69 64 |........|.Invalid|
|000000e0| 20 64 65 73 74 69 6e 61 | 74 69 6f 6e 20 75 73 65 | destina|tion use|
|000000f0| 72 20 23 24 97 32 d0 02 | 11 5c 00 0e 11 cd 05 00 |r #$.2..|.\......|
|00000100| 3c c2 aa 01 11 8f 01 0e | 09 cd 05 00 c3 00 00 4f |<.......|.......O|
|00000110| 72 69 67 69 6e 61 74 69 | 6e 67 20 66 69 6c 65 20 |riginati|ng file |
|00000120| 6e 6f 74 20 66 6f 75 6e | 64 24 3d 0f 0f 0f e6 60 |not foun|d$=....`|
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|000001c0| 00 2c 20 43 61 6e 6e 6f | 74 20 63 72 65 61 74 65 |., Canno|t create|
|000001d0| 20 66 69 6c 65 24 21 68 | 00 11 df 02 06 14 cd bb | file$!h|........|
|000001e0| 02 3a e1 02 e6 1f 32 e1 | 02 11 d3 02 0e 10 cd 05 |.:....2.|........|
|000001f0| 00 3c c2 94 02 11 80 02 | 0e 09 cd 05 00 c3 00 00 |.<......|........|
|00000200| 2c 20 43 61 6e 6e 6f 74 | 20 63 6c 6f 73 65 20 66 |, Cannot| close f|
|00000210| 69 6c 65 24 3a 65 00 b7 | f2 a6 02 32 dc 02 11 d3 |ile$:e..|...2....|
|00000220| 02 0e 1e cd 05 00 21 d0 | 02 35 ca 00 00 11 b8 02 |......!.|.5......|
|00000230| 0e 09 cd 05 00 c3 e1 01 | 0d 0a 24 7e 12 23 13 05 |........|..$~.#..|
|00000240| c2 bb 02 c9 2a d0 02 26 | 00 29 29 29 29 29 09 c9 |....*..&|.)))))..|
|00000250| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000260| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000270| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000280| 44 55 50 55 53 52 2e 41 | 53 4d 20 20 20 20 20 32 |DUPUSR.A|SM     2|
|00000290| 32 2d 4e 6f 76 2d 38 31 | 20 37 33 38 35 0d 0a 09 |2-Nov-81| 7385...|
|000002a0| 44 75 70 6c 69 63 61 74 | 65 20 61 20 43 50 2f 4d |Duplicat|e a CP/M|
|000002b0| 20 66 69 6c 65 20 65 6e | 74 72 79 20 6f 6e 20 6d | file en|try on m|
|000002c0| 75 6c 74 69 70 6c 65 20 | 6c 65 76 65 6c 73 0d 0a |ultiple |levels..|
|000002d0| 09 77 69 74 68 6f 75 74 | 20 72 65 63 6f 70 79 69 |.without| recopyi|
|000002e0| 6e 67 20 74 68 65 20 65 | 6e 74 69 72 65 20 66 69 |ng the e|ntire fi|
|000002f0| 6c 65 20 74 6f 20 65 61 | 63 68 2e 0d 0a 0d 0a 0d |le to ea|ch......|
|00000300| 0a 54 68 69 73 20 70 72 | 6f 67 72 61 6d 20 63 72 |.This pr|ogram cr|
|00000310| 65 61 74 65 73 20 65 78 | 74 72 61 20 65 6e 74 72 |eates ex|tra entr|
|00000320| 69 65 73 20 69 6e 20 61 | 20 43 50 2f 4d 20 32 2e |ies in a| CP/M 2.|
|00000330| 78 0d 0a 64 69 72 65 63 | 74 6f 72 79 20 74 68 61 |x..direc|tory tha|
|00000340| 74 20 22 70 6f 69 6e 74 | 20 74 6f 22 20 66 69 6c |t "point| to" fil|
|00000350| 65 73 20 77 68 69 63 68 | 20 77 65 72 65 20 61 63 |es which| were ac|
|00000360| 74 75 61 6c 6c 79 20 63 | 72 65 61 74 65 64 20 69 |tually c|reated i|
|00000370| 6e 20 61 0d 0a 64 69 66 | 66 65 72 65 6e 74 20 64 |n a..dif|ferent d|
|00000380| 69 72 65 63 74 6f 72 79 | 2e 20 20 54 68 69 73 20 |irectory|.  This |
|00000390| 67 69 76 65 73 20 79 6f | 75 20 61 63 63 65 73 73 |gives yo|u access|
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|000003b0| 6d 0d 0a 62 6f 74 68 20 | 75 73 65 72 20 6e 75 6d |m..both |user num|
|000003c0| 62 65 72 73 20 77 69 74 | 68 6f 75 74 20 68 61 76 |bers wit|hout hav|
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|000003f0| 68 65 0d 0a 61 63 74 75 | 61 6c 20 66 69 6c 65 20 |he..actu|al file |
|00000400| 69 74 73 65 6c 66 2e 20 | 20 54 6f 20 63 72 65 61 |itself. | To crea|
|00000410| 74 65 20 64 75 70 6c 69 | 63 61 74 65 20 65 6e 74 |te dupli|cate ent|
|00000420| 72 69 65 73 20 6f 6e 20 | 64 72 69 76 65 20 22 64 |ries on |drive "d|
|00000430| 22 20 66 6f 72 0d 0a 75 | 73 65 72 20 22 78 22 20 |" for..u|ser "x" |
|00000440| 66 72 6f 6d 20 66 69 6c | 65 73 20 77 68 69 63 68 |from fil|es which|
|00000450| 20 63 75 72 72 65 6e 74 | 6c 79 20 72 65 73 69 64 | current|ly resid|
|00000460| 65 20 61 74 20 75 73 65 | 72 20 22 79 22 2c 20 74 |e at use|r "y", t|
|00000470| 79 70 65 3a 0d 0a 09 41 | 3e 55 53 45 52 20 79 09 |ype:...A|>USER y.|
|00000480| 09 09 3b 6c 6f 67 20 69 | 6e 20 74 6f 20 6f 72 69 |..;log i|n to ori|
|00000490| 67 69 6e 61 74 69 6e 67 | 20 75 73 65 72 20 79 0d |ginating| user y.|
|000004a0| 0a 09 41 3e 44 55 50 55 | 53 52 20 64 3a 66 69 6c |..A>DUPU|SR d:fil|
|000004b0| 65 6e 61 6d 65 2e 74 79 | 70 20 78 09 3b 63 72 65 |ename.ty|p x.;cre|
|000004c0| 61 74 65 20 66 69 6c 65 | 73 20 61 74 20 64 65 73 |ate file|s at des|
|000004d0| 74 69 6e 61 74 69 6f 6e | 20 75 73 65 72 20 78 0d |tination| user x.|
|000004e0| 0a 4e 6f 74 65 20 74 68 | 61 74 20 74 68 69 73 20 |.Note th|at this |
|000004f0| 70 72 6f 67 72 61 6d 20 | 77 69 6c 6c 20 74 6f 74 |program |will tot|
|00000500| 61 6c 6c 79 20 64 75 70 | 6c 69 63 61 74 65 20 74 |ally dup|licate t|
|00000510| 68 65 20 64 69 72 65 63 | 74 6f 72 79 20 65 6e 74 |he direc|tory ent|
|00000520| 72 79 20 69 6e 0d 0a 61 | 6c 6c 20 72 65 73 70 65 |ry in..a|ll respe|
|00000530| 63 74 73 20 28 65 78 63 | 65 70 74 20 74 68 65 20 |cts (exc|ept the |
|00000540| 75 73 65 72 20 6e 75 6d | 62 65 72 2c 20 6f 66 20 |user num|ber, of |
|00000550| 63 6f 75 72 73 65 29 2e | 20 20 54 68 69 73 20 6d |course).|  This m|
|00000560| 65 61 6e 73 20 74 68 61 | 74 0d 0a 62 6f 74 68 20 |eans tha|t..both |
|00000570| 65 6e 74 72 69 65 73 20 | 77 69 6c 6c 20 73 68 6f |entries |will sho|
|00000580| 77 20 74 68 65 20 66 69 | 6c 65 20 77 69 74 68 20 |w the fi|le with |
|00000590| 74 68 65 20 73 61 6d 65 | 20 61 74 74 72 69 62 75 |the same| attribu|
|000005a0| 74 65 73 2c 20 73 75 63 | 68 20 61 73 0d 0a 22 72 |tes, suc|h as.."r|
|000005b0| 65 61 64 2d 6f 6e 6c 79 | 22 20 6f 72 20 22 73 79 |ead-only|" or "sy|
|000005c0| 73 74 65 6d 22 2e 20 20 | 54 68 65 20 66 69 6c 65 |stem".  |The file|
|000005d0| 6e 61 6d 65 2e 74 79 70 | 20 6d 61 79 20 63 6f 6e |name.typ| may con|
|000005e0| 74 61 69 6e 20 22 3f 22 | 20 61 6e 64 20 22 2a 22 |tain "?"| and "*"|
|000005f0| 2e 0d 0a 0d 0a 54 68 65 | 20 6f 6e 6c 79 20 6b 6e |.....The| only kn|
|00000600| 6f 77 6e 20 68 61 7a 61 | 72 64 20 69 6e 20 74 68 |own haza|rd in th|
|00000610| 65 20 75 73 65 20 6f 66 | 20 74 68 69 73 20 70 72 |e use of| this pr|
|00000620| 6f 67 72 61 6d 20 6f 63 | 63 75 72 73 20 77 68 65 |ogram oc|curs whe|
|00000630| 6e 20 65 72 61 73 69 6e | 67 0d 0a 6f 6e 65 20 6f |n erasin|g..one o|
|00000640| 66 20 74 68 65 20 64 75 | 70 6c 69 63 61 74 65 20 |f the du|plicate |
|00000650| 65 6e 74 72 69 65 73 2e | 20 20 59 6f 75 20 6d 75 |entries.|  You mu|
|00000660| 73 74 20 74 79 70 65 20 | 63 6f 6e 74 72 6f 6c 2d |st type |control-|
|00000670| 63 20 69 6d 6d 65 64 69 | 61 74 65 6c 79 0d 0a 61 |c immedi|ately..a|
|00000680| 66 74 65 72 20 65 72 61 | 73 69 6e 67 20 74 68 65 |fter era|sing the|
|00000690| 20 65 6e 74 72 79 2c 20 | 73 6f 20 74 68 61 74 20 | entry, |so that |
|000006a0| 63 70 2f 6d 20 69 73 20 | 66 6f 72 63 65 64 20 74 |cp/m is |forced t|
|000006b0| 6f 20 72 65 62 75 69 6c | 64 20 74 68 65 20 61 6c |o rebuil|d the al|
|000006c0| 6c 6f 63 61 74 69 6f 6e | 0d 0a 76 65 63 74 6f 72 |location|..vector|
|000006d0| 20 66 6f 72 20 74 68 61 | 74 20 64 72 69 76 65 2e | for tha|t drive.|
|000006e0| 20 20 54 68 69 73 20 69 | 73 20 62 65 63 61 75 73 |  This i|s becaus|
|000006f0| 65 20 74 68 65 20 65 72 | 61 73 65 20 63 6f 6d 6d |e the er|ase comm|
|00000700| 61 6e 64 20 66 72 65 65 | 73 20 74 68 65 0d 0a 62 |and free|s the..b|
|00000710| 6c 6f 63 6b 73 20 73 68 | 6f 77 6e 20 66 6f 72 20 |locks sh|own for |
|00000720| 74 68 65 20 65 72 61 73 | 65 64 20 66 69 6c 65 20 |the eras|ed file |
|00000730| 77 69 74 68 6f 75 74 20 | 63 68 65 63 6b 69 6e 67 |without |checking|
|00000740| 20 69 66 20 74 68 65 79 | 20 61 72 65 20 69 6e 20 | if they| are in |
|00000750| 75 73 65 0d 0a 65 6c 73 | 65 77 68 65 72 65 2e 20 |use..els|ewhere. |
|00000760| 20 49 66 20 79 6f 75 20 | 64 69 64 6e 27 74 20 74 | If you |didn't t|
|00000770| 79 70 65 20 63 6f 6e 74 | 72 6f 6c 2d 63 2c 20 74 |ype cont|rol-c, t|
|00000780| 68 65 20 6e 65 78 74 20 | 64 69 73 6b 20 77 72 69 |he next |disk wri|
|00000790| 74 65 20 77 6f 75 6c 64 | 0d 0a 63 6c 6f 62 62 65 |te would|..clobbe|
|000007a0| 72 20 74 68 65 73 65 20 | 62 6c 6f 63 6b 73 2c 20 |r these |blocks, |
|000007b0| 76 6f 69 64 69 6e 67 20 | 61 6c 6c 20 6f 74 68 65 |voiding |all othe|
|000007c0| 72 20 70 6f 69 6e 74 65 | 72 73 20 74 6f 20 74 68 |r pointe|rs to th|
|000007d0| 65 20 66 69 6c 65 2e 0d | 0a 55 6e 66 6f 72 74 75 |e file..|.Unfortu|
|000007e0| 6e 61 74 65 6c 79 20 74 | 68 69 73 20 77 6f 75 6c |nately t|his woul|
|000007f0| 64 20 6f 6e 6c 79 20 62 | 65 20 61 70 70 61 72 65 |d only b|e appare|
|00000800| 6e 74 20 74 68 65 20 6e | 65 78 74 20 74 69 6d 65 |nt the n|ext time|
|00000810| 20 79 6f 75 20 74 72 69 | 65 64 0d 0a 74 6f 20 72 | you tri|ed..to r|
|00000820| 65 61 64 20 74 68 65 20 | 66 69 6c 65 20 66 72 6f |ead the |file fro|
|00000830| 6d 20 61 6e 6f 74 68 65 | 72 20 75 73 65 72 20 6e |m anothe|r user n|
|00000840| 75 6d 62 65 72 2c 20 61 | 74 20 77 68 69 63 68 20 |umber, a|t which |
|00000850| 74 69 6d 65 20 79 6f 75 | 20 77 6f 75 6c 64 0d 0a |time you| would..|
|00000860| 72 65 61 64 20 67 61 72 | 62 61 67 65 2e 0d 0a 0d |read gar|bage....|
|00000870| 0a 50 6c 65 61 73 65 20 | 66 6f 72 77 61 72 64 20 |.Please |forward |
|00000880| 61 6c 6c 20 63 6f 6d 6d | 65 6e 74 73 2c 20 73 75 |all comm|ents, su|
|00000890| 67 67 65 73 74 69 6f 6e | 73 20 61 6e 64 20 69 6d |ggestion|s and im|
|000008a0| 70 72 6f 76 65 6d 65 6e | 74 73 20 74 6f 3a 0d 0a |provemen|ts to:..|
|000008b0| 09 42 72 75 63 65 20 52 | 2e 20 52 61 74 6f 66 66 |.Bruce R|. Ratoff|
|000008c0| 0d 0a 09 38 30 20 47 69 | 6c 6c 20 4c 61 6e 65 2c |...80 Gi|ll Lane,|
|000008d0| 20 41 70 74 20 31 42 0d | 0a 09 49 73 65 6c 69 6e | Apt 1B.|..Iselin|
|000008e0| 2c 20 4e 65 77 20 4a 65 | 72 73 65 79 20 00 09 00 |, New Je|rsey ...|
|000008f0| 75 00 75 00 75 00 75 00 | 75 00 75 00 75 00 75 00 |u.u.u.u.|u.u.u.u.|
|00000900| 75 1a 1a 1a 1a 1a 1a 1a | 1a 1a 1a 1a 1a 1a 1a 1a |u.......|........|
|00000910| 1a 1a 1a 1a 1a 1a 1a 1a | 1a 1a 1a 1a 1a 1a 1a 1a |........|........|
|00000920| 1a 1a 1a 1a 1a 1a 1a 1a | 1a 1a 1a 1a 1a 1a 1a 1a |........|........|
|00000930| 1a 1a 1a 1a 1a 1a 1a 1a | 1a 1a 1a 1a 1a 1a 1a 1a |........|........|
|00000940| 1a 1a 1a 1a 1a 1a 1a 1a | 1a 1a 1a 1a 1a 1a 1a 1a |........|........|
|00000950| 1a 1a 1a 1a 1a 1a 1a 1a | 1a 1a 1a 1a 1a 1a 1a 1a |........|........|
|00000960| 1a 1a 1a 1a 1a 1a 1a 1a | 1a 1a 1a 1a 1a 1a 1a 1a |........|........|
|00000970| 1a 1a 1a 1a 1a 1a 1a 1a | 1a 1a 1a 1a 1a 1a 1a 1a |........|........|
+--------+-------------------------+-------------------------+--------+--------+