The what help files that are provided are found by typing a bogus ftp command and capturing the error message..
 

C:\WINDOWS>ftp open c get < bogus command causes error and this message

 FTP is a DOS based command. FTP is used to download files form remote sites.
 The FTP command is used froma DOS command line [C:\>FTP]

 Availible switches are listed below.

 Repeat visits to the same site can use a file [i.e. SITENAME.FTP] to store commands
 and user/password directory and other information specific to that remote site and
 user. Coupled with a batch file [i.e. SITENAME.BAT] FTP can be automated completely.

Transfers files to and from a computer running an FTP server service
(sometimes called a daemon). Ftp can be used interactively.

FTP [-v] [-d] [-i] [-n] [-g] [-s:filename] [-a] [-w:windowsize] [-A] [host]

  -v             Suppresses display of remote server responses.
  -n             Suppresses auto-login upon initial connection.
  -i             Turns off interactive prompting during multiple file
                 transfers.
  -d             Enables debugging.
  -g             Disables filename globbing (see GLOB command).
  -s:filename    Specifies a text file containing FTP commands; the
                 commands will automatically run after FTP starts.
  -a             Use any local interface when binding data connection.
  -A             login as anonymous.
  -w:buffersize  Overrides the default transfer buffer size of 4096.
  host           Specifies the host name or IP address of the remote
                 host to connect to.
 

Unless you have an exceptional memory... You will probably use a batch file to get the command line right.

One way is to use a two file system a batch file to start your session and an FTP file to contain the commands
you use most often. Name maybe paired using the site or machine name.
 

From FTP help responses:

!               Escape to the shell
prompt          Force interactive prompting on multiple commands

put             Send one file
send            Send one file

get             Receive file
recv            Receive file

?               Print local help information
help            Print local help information
lcd             Change local working directory

ls              List contents of remote directory
dir             List contents of remote directory

append          Append to a file

remotehelp      Get help from remote server
delete          Delete remote file
pwd             Print working directory on remote machine
mkdir           Make directory on the remote machine
rmdir           Remove directory on the remote machine

mdir            List contents of multiple remote directories
mls             List contents of multiple remote directories

mput            Send multiple files
mget            Get multiple files
mdelete         Delete multiple files

status          Show current status
bell            Beep when command completed
verbose         Toggle verbose mode
hash            Toggle printing `#' for each buffer transferred
trace           Toggle packet tracing
debug           Toggle debugging mode

quote           Send arbitrary ftp command
literal         Send arbitrary ftp command

open            Connect to remote tftp
user            Send new user information

type            Set file transfer type
ascii           Set ascii transfer type
binary          Set binary transfer type

glob            Toggle metacharacter expansion of local file names

bye             Terminate ftp session and exit
quit            Terminate ftp session and exit
close           Terminate ftp session
disconnect      Terminate ftp session

cd              Change remote working directory
rename          Rename file
 

This is not the raw capture. I have grouped the commands into function

When I start a new batch file with an unfamiliar command, I usually put what help there is right in the batch file following an exit
 

FTP-CALL.bat

:: the command starts below double colons are a good fast way to enter comments

FTP -v-n -s%1

:: the -s parameter is calling for an outside file for the ftp commands
:: The %1 is a varible place holder If you have many FTP sites to goto
:: this can help speed up things further

:end
exit
FTP [-v] [-d] [-i] [-n] [-g] [-s:filename] [-a] [-w:windowsize] [-A] [host]

  -v             Suppresses display of remote server responses.
  -n             Suppresses auto-login upon initial connection.
  -i             Turns off interactive prompting during multiple file
                 transfers.
  -d             Enables debugging.
  -g             Disables filename globbing (see GLOB command).
  -s:filename    Specifies a text file containing FTP commands; the
                 commands will automatically run after FTP starts.
  -a             Use any local interface when binding data connection.
  -A             login as anonymous.
  -w:buffersize  Overrides the default transfer buffer size of 4096.
  host           Specifies the host name or IP address of the remote
                 host to connect to.

Now I can make changes with out looking up the command line syntax or error messages

Well that looks pretty good for a start. Now to write the .FTP file with all the ftp commands included

Next

The Help file right mouse click on this link to download or left mouse click ot read.

The file also contains a couple of Easter eggs...