:HELP
You may use the HELP command to obtain either a listing of available
commands or to get a brief summary of a command. To get a listing of
commands, type "HELP" by itself. To get help on a specific command,
type "HELP (command name)". For example, "HELP DIR" would get you
help on the DIR COMMAND.
:ATTRIB
The ATTRIB command may be used to view or change the attributes a file
or series of files. The syntax is as follows:

    ATTRIB [+-r +-h +-s +-a] FileSpec

    (R=Read only, H=Hidden, S=System, A=Archive)
:CD
The CD (or CHDIR) command is used to change the current directory. For
example, typing "CHDIR \DOWNLOADS" would switch you to the \DOWNLOADS
directory (providing you have one). You can also type "CHDIR" by itself
to get the name of the current directory.
:CHDIR
The CD (or CHDIR) command is used to change the current directory. For
example, typing "CHDIR \DOWNLOADS" would switch you to the \DOWNLOADS
directory (providing you have one). You can also type "CHDIR" by itself
to get the name of the current directory.
:CLS
CLS will clear the SDOS window.
:COPY
COPY is a powerful command that lets you copy files from one location
to another. There are two forms of copy supported by SDOS:

    COPY <source file> <dest file>        - Copy a single file
    COPY CON <dest file>                  - Copy keyboard output to file

If you use the "COPY CON" format, all keyboard output will be sent to the
file until you send a CTRL-Z character.
:D:
"d:" designates a drive letter. For example, typing "A:" would switch you
to drive a, typing "B:" would switch you to drive b, etc.
:DEL
The DEL (or ERASE) command allows you to delete a file or series of files.
DEL accepts one parameter which is the filespec (wild card allowed) of the
file(s) you wish to delete. You will be prompted before the erasure is made
to make sure you wish to delete the files.
:DELNUL
DELNUL is a special command that will delete zero-length files. It accepts the
same parameters as DEL, but will only files that have a size of 0 bytes.
Occasionally, some programs (such as file transfer protocols) may leave zero
length files laying around. This command gets rid of them.
:DIR
The DIR command will list the files in a certain directory. Typed by itself
{i.e. "DIR"), the DIR command will list the files in the current directory.
You may also specify a directory name (i.e. "DIR C:\TURBO") or a file mask
(i.e. "DIR *.PAS") or both (i.e. "DIR C:\TURBO\*.PAS"). Specifying the
/P option will cuase the directory to pause after each screen and
specifying the /W option will display a wide directory. The "/T" option
may be used to display the TRANSFER TIME of each file.
:ERASE
The DEL (or ERASE) command allows you to delete a file or series of files.
DEL accepts one parameter which is the filespec (wild card allowed) of the
file(s) you wish to delete. You will be prompted before the erasure is made
to make sure you wish to delete the files.
:FREE
The FREE command will display the free space on a drive. Typed by itself,
FREE will display the amount of space on the current drive. By specifying
a drive letter, FREE will display the amount of free space on that
drive.
:MD
The MKDIR (or MD) command will allow you to create a subdirectory. The
subdirectory created will be a subdirectory of your current working
directoriy unless you specify otherwise. MKDIR accepts one parameter
which is the directory name/path.
:MKDIR
The MKDIR (or MD) command will allow you to create a subdirectory. The
subdirectory created will be a subdirectory of your current working
directoriy unless you specify otherwise. MKDIR accepts one parameter
which is the directory name/path.
:REN
The REN (or RENAME) command will let you rename and/or move files. Unlike
dos, you can rename across subdirectory - in effect, moving the file.
REN takes two parameters, a source and a destination file name.
:RENAME
The REN (or RENAME) command will let you rename and/or move files. Unlike
dos, you can rename across subdirectory - in effect, moving the file.
REN takes two parameters, a source and a destination file name.
:RMDIR
The RMDIR (or RD) command will let you remove a sub-directory. To do this,
there may be no files or subdirectories located within the subdirectory
you wish to remove. RMDIR takes one parameter, the name/path of the
subdirectory.
:RD
The RMDIR (or RD) command will let you remove a sub-directory. To do this,
there may be no files or subdirectories located within the subdirectory
you wish to remove. RMDIR takes one parameter, the name/path of the
subdirectory.
:SIZE
The SIZE command will display a tally of the number of files, bytes
contained in the files, and the space that would be consumed on a floppy
drive and a hard drive (2048 byte cluster assumed).
:TYPE
The TYPE command allows you to display a file in the SDOS window. The file
may be ascii or binary and will be displayed one page at a time. You will
be promped between pages  to continue or stop. The TYPE command accepts
one numeric parameter which is the filename to display.
:ZIPVIEW
This command will display the file directory of a zip file. The syntax
is ZIPVIEW followed by the name of the zip file you wish to view. (i.e.
ZIPVIEW THISZIP.ZIP".
:DEBUG
DEBUG is a watered-down version of the MSDOS program. With debug, you may
view a binary/ascii file in hexadecimal format. Unlike the MSDOS debug,
you may not make changes to the file. Typing "H" at the debug prompt will
get you a quick command summary.
:BROWSE
BROWSE is a view browser that will allow you to display a file and use the
arrow keys to scroll up and down within that file. It is similar to TYPE,
but you can move backwards as well as forwards.

