Vector Graphic Vector 4 - Page 111

VECTOR 4 USER'S MANUAL
INTRODUCTION TO VECTOR 4 CP/M
Why Would You Want To Use An AFN?
Because most utility programs you will be using will ask for file names, so
that the program will know what files you want to copy, delete, move, or
whatever. By entering an afn, you can call several files with similar names at
the same time. This might help if you wanted to copy all command files,
erase all files beginning with "ACCOUNT", or list Vector Graphic's printer
driver (or List Device) files, with extensions of .LD1 and .LD2.
Using the example FILEN AME.EXT, you can use wild cards in the following
ways to produce
the indicated response:
ENTER
FILENAME.*
*.EXT
FILENAME.E??
FILE*.*
TO DISPLAY
All files called FILENAME, but with any extension
All files with any name,
but only the .EXT extension
All files called
FILENAME, with extensions beginning with E;
(e.g., FILENAME.EXT, FILENAME.EGR, FILENAME.EPL)
All files whose names begin with FILE and have any
extension; e.g., FILENAME.EXT, FILELIST .MEM, FILE.ASM,
FILE
USR.C OM
The asterisk * can also represent spaces, as indicated above in FILE.ASM and
FILEUSR.COM, where the names do not fill out all eight charac terse ( In the
example above, for instance, FILENAME.E?? could be replaced with
FILENAME.E*. However, the * would pick up FILENAME.EX and FILENAME.E
as well, since
the asterisk accepts spaces as well as characters.
As a quick aside, standard computer convention refers to the asterisk as "star"
and the period between the filename and the extension as "dot". It saves time
when pronouncing, for example, the ambiguous file name which means
"everything on the disk": *.* ("star-<iot-star", which is six syllables shorter
than "asterisk-dot-asterisk".)
You
can use any characters to specify a file name, with the exception of the
following:
< > •
• • = ., * [ ]
, ,. .
Since these are used to control functions in CP/M or to represent wild cards,
you cannot
create a file name using one of these characters.
Rev. A - 9-01-82
7100-0001
VII-25