Vector Graphic Vector 4 - Page 71

VECTOR 4 USER'S MANUAL
VECTOR 4 OPERATING COMMANDS
Er~ FRes
If you are copying files onto another diskette and you realize that· the new
diskette contains some unnecessary files, you can erase (or delete) them using
the ERA resident command. Be yery careful usirv the ERA command. tbouU.
ooce a fUe is erased, it cao"oot be retrieved. Erase only files which are
unnecessary, or files which you know have been backed up. Diskettes are less
expensive than· information.
To erase a file from the current disk, enter the command:
ERA
SAMPLE.DOC [RETURN]
When the A> prompt returns, the file will have been erased.
To erase a file from the B drive while logged onto the A drive, you have two
choices. You can either move from A to B by the usual method (entering the
command B: [RETURND, then erase the file you want to; or you can enter the
command:
A)ERA
D:SAMPT,R.DOC [RETURN]
This latter method saves a little time.
Er~ A Rqe Of PRes
The ERA command accepts ambiguous file names as well, so you can erase
more than one
fUe at a time by using the CP/M wild cards. But be very
careful about how you specify the wild card names: make sure that the
combination you enter does not apply to fUes that you wish to keep.
To
erase all the command files from a diskette - not that you would want to
- you would enter the line:
A>ERA *.COM [RETURN]
This would result in the erasure of all files with an extension of COM.
To erase all. the files on a diskette, enter the command:
A)ERA
*ft* [RETURN]
Since this could be disastrous, the operating system gives you one "last
chance" to reconsider, by asking you:
ALL FILES (Y-N)t
Rev. A - 9-01-82 P /N 7100-0001
V-23