Disc System User Guide (1982).

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*TYPE Purpose Displays a text file on the screen without line numbers. Example *TYPE HELLO Description Screen list of a named file. Associated commands *LIST *DUMP Notes BASIC programs are not stored on disc as text files when you SAVE them so this command will display nonsense. Page mode is selected with CTRL N and turned off by CTRL O. 58
*WIPE Purpose Removes specified files from the catalogue and rearranges the catalogue. Asks for confirmation that each file conforming to the specification is to be deleted. Example *WIPE *.SU* is a request to delete all files on the current drive beginning with the letters SU. As each file is found the filename is displayed like this: A.SUM At this point only type " Y " if you want to delete the file. Typing anything else leaves the file intact. Description Delete with and confirmation per file. Associated commands *DESTROY *DELETE Notes Once deleted using *WIPE, a file cannot be restored. Locked files are not removed. (See *ACCESS). 59
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©© Acorn Computers Ltd 1982 First
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9 Changing filing systems 75 10 Err
Page 8 and 9:
1 What is a disc system? If you hav
Page 10 and 11: computer the name of the file conta
Page 12 and 13: — The disc filing system controls
Page 14 and 15: more detail later. Now press SPACE
Page 16 and 17: Diagram 2: A 5¼" disc
Page 18 and 19: to copy a complete disc or specifie
Page 20 and 21: Diagram 4 Single disc drive copying
Page 22 and 23: Diagram 5 Tracks, sectors, bytes
Page 24 and 25: The drives are numbered as shown be
Page 26 and 27: Option 0: ignores !BOOT Option 1: *
Page 28 and 29: Notes Particular points to watch fo
Page 30 and 31: Important Locking a file does NOT p
Page 32 and 33: *BUILD Purpose To create a file di
Page 34 and 35: Notes Permitted values of are 0, 1
Page 36 and 37: Diagram 6 *COMPACT Warning This com
Page 38 and 39: *DELETE Purpose To remove a single
Page 40 and 41: *DIR () Set the directory Purpose T
Page 42 and 43: *DUMP Purpose Produces a hexadecim
Page 44 and 45: * EXEC execute Purpose This comman
Page 46 and 47: *INFO Purpose Displays information
Page 48 and 49: On entry X and Y point to a block o
Page 50 and 51: *LOAD Purpose Reads a named file
Page 52 and 53: *OPT 4 (n) Purpose Changes the auto
Page 54 and 55: *RUN (parameters to utility) Purpo
Page 56 and 57: If enough space is available, the i
Page 58 and 59: Displaying the file using *LIST wil
Page 62 and 63: 6 The filing system utilities As ex
Page 64 and 65: can format a disc in the second dri
Page 66 and 67: 7 Random access files One of the ma
Page 68 and 69: this case the type is 'string' so t
Page 70 and 71: The above method will only work con
Page 72 and 73: A=&80 causes a file to be opened fo
Page 74 and 75: A=0 Save a section of memory as a n
Page 76 and 77: On Exit C clear implies a successfu
Page 78 and 79: 10 Error messages &CC Bad filename
Page 80 and 81: &BD Not enabled An attempt is made
Page 82 and 83: &07 Number of sectors on disc (8 lo
Page 84 and 85: 12 Filing system command summary Co
Page 86 and 87: Index Abbreviations 82 *ACCESS 27 A
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