[Typo3-linux] Under witch unix user i should install ?

[Francesco di Francia]

I'm reading the install.txt and i read a tips for linux installation: 
"you may want to create a user and group called "httpd" or "apache", and 
do the installation whilst logged in as that user"

What does it mean exactly ? Is a way to avoid issue related to the 
unique apache user ? I.e., using php not as a CGI module, all files 
uploaded from a php script are assigned to the apache user ( usually 
"nobody", or "web" ). So if i create a folder from a php script then i 
cannot insert file via ftp into this folder and viceversa. ( because of 
the ftp users is not the apache user ).

So i cannot install and run installation file using the root user ?

thanks,

francesco