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Features_of_the_Shell
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Devices
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Devices
There are two different kinds of device. The first is a physical object,
like a disk drive or a printer. The second is made using the Assign command
and is a convenient way of referring to something. here are a few devices
you will come across.
Physical Devices
Df0:
The internal floppy disk drive
Df1:
External drive #1
Df2/3:
External drives #2 and #3. Most people only have one or two
drives but up to four are supported
Dh0:
Hard drive
Assigned devices
PRT:
The printer selected in Preferences
PAR:
A peripheral connected to the parallel port, usually a
printer
SER:
A modem or other peripheral connected to the serial port
SYS:
The disk used to boot up the system
C:
The C directory of SYS:
LIBS:
The libs directory of the boot disk
*
The active Shell window
NIL:
A pseudo device where you send unwanted output. See the
section on Redirection for more details.
RAM:
Your Amiga's Random Access Memory. You can copy files to
RAM: then run them from there to make them faster. Some
commands, like install, need to be run from RAM: on a single
drive machine.
Notice that all devices (except *), even assigned devices end with a colon.
Remember to include the colon whenever you Assign a device. Assigned devices
are treated in exactly the same way as physical devices. Copying a text
file to PRT: will print it. Copying it to NIL: will discard it. And so on.