8cat

Overview ¶

Program 8cat is used to display files from a PDP-8 disk image.

Usage: 8cat [-678r] [IMAGE/]FILE
 -6    decode as 6 bit ascii
 -7    decode as 7 bit ascii
 -8    decode as packed 8 bit bytes
 -r    raw bytes

By default, 8cat tries to determine if the file is encoded as ASCII6, 7 bit ASCII, or is a binary file.

The disk image is either specified as the directory component of the file to cat, or by the environment variable PDP_IMAGE.

Assuming PDP8_IMAGE is set to /tmp/os8.rk05:

PATH                   DRIVE         SIDE FILE
foobar.xy               /tmp/os8.rk05  A   FOOBAR.XY
b:foobar.xy             /tmp/os8.rk05  B   FOOBAR.XY
./os8.rk05/foobar.xy    ./os8.rk05     A   FOOBAR.XY
./os8.rk05/a:foobar.xy  ./os8.rk05     A   FOOBAR.XY
./os8.rk05/b:foobar.xy  ./os8.rk05     B   FOOBAR.XY