# http://www.gentoo.org/doc/en/cvs-tutorial.xml

# login

$ export CVSROOT=:ext:sdibb@foo.bar.com:/usr/local/cvsroot
$ cvs init
$ cvs co module_name

# get latest updates from remote repository

$ cvs update -dP

# -d creates any new directories
# -P removes empty directories

# commit changes:
$ cvs update

# commit changes with message:
$ cvs commit -m "I fixed a bug."

# view changelog
$ cvs log myfile.c

# Create a .cvsrc
cvs -q  
diff -u -b -B
checkout -P
update -d -P

# Add a file to the repository
$ cvs add myfile.c # need to commit for it to be added
$ cvs add directory # no commit needed

# Remove a file/directory
$ rm myoldfile.c
$ cvs remove myoldfile.c # requires commit
$ cvs remove directory # no commit
$ rmdir directory

# Checkout anoncvs portage tree

cvs -d:pserver:anonymous@anoncvs.gentoo.org:/var/cvsroot -q -z9 co 
gentoo-x86