creating a file from the command line code example

Example 1: create a file cmd

type NUL > EmptyFile.txt
# also
echo. 2>EmptyFile.txt
copy nul file.txt > nul # also in qid's answer below
REM. > empty.file
fsutil file createnew file.cmd 0 # to create a file on a mapped drive

Example 2: create file command line

type nul > README.txt