Deleting files and directories
In order to delete an object (or a collection of objects) be they files or directories or both,
•
select them using SELECT or ADJUST appropriately
•
click MENU in the filer directory window where they are located
•
move to the 'selection' option and follow the arrow the the submenu
•
then click SELECT on the 'Delete' option
Both copying/moving and deletion processes can be done to multiple files or directories (
and any mixture of them).
Long filenames and large numbers of files per directory
Your hard disc will have been set up during the manufacture build to use the new F+ format.
The F+ disc format, which is a feature of RISC OS 4, supports long filenames (you may give
a file a name of any length but the pathname must not exceed 255 characters in length - if
you try to give a file a name whereby its full pathname uses more than 255 characters then
you will get the error message "Path length too long for Filer" to remedy this either rename
the file using a shorter name or move it higher up the filer heirarchy where the pathname
will use fewer character whilst retaining the same filename). You may not use 'illegal'
characters such as £ $ % & in naming files since these are used by RISC OS. Whilst
enjoying the ability to give your files and directories long names (which can help in
identifying their content) you may also store as many item within any directory as you like (
up to about 80,000 items).
Compatibility with non-RISC OS 4 machines
RISC OS 4 is fully compatible with old-format discs, so you can plug an older format RISC
OS disc straight into your RISC OS 4 machine without problems.
If you wish to format a floppy disc so that it is compatible with a RISC OS 3.7 or earlier
machine, simply select "F format" for high density discs or "E format" for low density ones.
Don't use the "+" variants if you wish your discs to be accessible on all RISC OS machines.
Note that the Acorn A3000 and older models can only read low-density (e.g. 800K) formats,
properly formatted on low-density discs.
47
