Hi I was going through the man page ( on my Ubuntu 12.04 ) and noticed that in the synopsis, owner has been marked as optional ( i.e, it is enclosed in [ ] ).
chown [OPTION]... [OWNER][:[GROUP]] FILE... On browsing the man pages on web i noticed this was only the case with UNIX man page. Man pages at freeBSD<http://www.freebsd.org/cgi/man.cgi?query=chown&apropos=0&sektion=0&manpath=FreeBSD+7.0-RELEASE&format=html>and oracle <http://docs.oracle.com/cd/E19683-01/816-0210/6m6nb7m5t/index.html>showed the command usage as expected. I believe the correct usage would be chown [OPTION]... OWNER[:GROUP] FILE... Please do the corrections necessary and inform me if i am making a mistake in interpreting this. *Regards,* *Anubhav Chaturvedi* *Birla Institute of Technology & Science, Pilani* KK Birla Goa Campus +91-9637399150 *" You can do anything if you stop doing everything "*