-
de <name>
destroy the named file <name>
-
op <name>
open the named file <name> for reading and writing;
display an index value
-
cl <index>
close the specified file <index>
-
rd <index> <count>
sequentially read a number of bytes <count> from
the specified file <index> and display them on the terminal
-
wr <index> <char> <count>
sequentially write <count> number of <char>s
into the specified file <index> at its current position
-
sk <index> <pos>
set the current position of the specified file <index>
to <pos>
-
dr
list the names of all files and their lengths
-
in <no_cyl> <no_surf> <no_sect>
<sect_len> <disk_cont>
create a disk using the given dimension parameters
and initialize it using the file <disk_cont>
-
sv <disk_cont>
save the contents of the disk in the file <disk_cont>
-
q
exit the system