Dos User - No Boot Dos Disk, No Edit.com,How to create Imp Files

Hello Dos friends
This is a simple but most forgotton command to create
files like config.sys and autoexec.bat files, well heres it...
Even if u dont have a dos boot disk u can work ur way
to some extent.
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At c:\ prompt
type
copy con config.sys
devicehigh=c:\dos\himem.sys
device=c:\dos\setver.exe
devicehigh=c:\dos\emm386.exe ram
dos=high,umb
last drive=z
then press CTRL + z
press enter
Config.sys file will be created.
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Similarly u can create autoexec.bat
@echo off
prompt=$P$G
path=c:\dos;c:\
lh mouse
lh doskey
Press CTRL + Z