which moves the file 'OldFile' from the CSD into the CSD's parent directory

and renames it 'NewFile'. You can never use wildcards in a *RENAME

command, because of the great scope for confusion (your files might end up

almost anywhere).

The *COPY command makes a copy of a file, or files, whilst retaining the

originals) where they were. The command is followed by the source filename

(which may contain wildcards) and then by the destination pathname (which

may not); it will not copy directories (because they may contain further

directories, and so on, and so on]. An example of copying is:

*COPY $.*$.Backup

which copies all the non-directory files in '$' into the directory '$.Backup', thus

making duplicates of the files.

*COPY uses as much shadow memory as is available to it during copying and

uses shadow memory in preference to main memory.

If you have two disc drives you can copy files from one to the other by including

the drive number in the pathnarne, e.g.:

*COPY :0.* :1

which copies all the (non-directory) files from the root on drive 0 to the root on

drive 1. This is not possible with a single drive because *COPY is unable to

prompt you to change discs. If you want to copy between discs on only one drive,

or if you want to copy whole directories (including any sub-directories they may

contain), you should use the 'DIRCOPY' utility which is in the library on the

Welcome disc.

Disc control commands

Because discs have only a finite, albeit fairly large, capacity for storing

information, the ADFS provides several commands to allow you to make the

most of your discs. The first such command, *FREE, tells you exactly how much

space is in use and how much is still free. If you type:

*FREE

the ADFS will respond with a table similar to this:

0006AA Sectors = 436,736 Bytes Free

000356 Sectors = 218,624 Bytes Used

The first figures are in hexadecimal, being the number of 256 byte sectors

currently either free or in use. Files are allocated space in multiples of whole

sectors depending on their size, whilst directories occupy five sectors.

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