Commodore 1570 User Manual page 6

CHAPTER 4: DOS SHELL ......•...•......•....•..•..•................ 33
language selection ...•...•...•.........•........................ 33
primary menu screen •...•...................................... 33
disk/printer setup ..•.......................................•..• 33
run a program ••...•........................................... 34
format a disk .••...........................•.....•............. 34
cleanup a disk .....•....•...•............................. ' ..... 34
copy a disk •....................•.....•..........•............. 35
copy files ..............•...••..........•...................•.. 35
delete files ..............••............................•....... 36
restore files ...........................................•....... 36
rename files ..............................................•.... 37
reorder directory .......•...................................... 37
PART TWO: ADVANCED OPERATION AND PROGRAMMING
CHAPTER 5: SEQUENTIAL DATA FILES ........•...................... 39
the concept of files ............................................• 39
opening a file ...............•......•........................... 39
adding to a sequential file •...•......•........................... 43
writing file data: using print# ................................... 43
closing a file ........•....•............•........................ 45
reading file data: using input# ................................... 46
more about input# (advanced users) .............................. 47
numeric data storage on diskette ................................. 48
reading file data: using get# ..................................... 49
demonstration of sequential files .................................. 51
CHAPTER 6: RELATIVE DATA FILES .................................. 53
the value of relative access ....................................... 53
files, records, and fields ......................................... 53
file limits •.................................................... 54
creating a relative file ........................................... 54
using relative files: record# command ............................. 55
completing relative file creation .................................. 57
expanding a relative file .....................................•... 59
writing relative file data ..............................•.......... 59
designing a relative record ...................................... 59
writing the record .............................................. 60
reading a relative record ........................................ 64
the value of index files (advanced users) ........................... 66