Automatically create a file in Linux

To create automatically a file do:

touch /path/to/file/filename

or

[ -f  /path/to/file/filename ] || > /path/to/file/filename

to add text row

echo 'this is first row' >> /path/to/file/filename
echo 'this is last row' >>  /path/to/file/filename

• create automatically
• echo
• linux command
• touch