If `tc' is the current working directory, the
following is true:
`cvs update testing' is equivalent to
cvs update testing/testpgm.t testing/test2.t
`cvs update testing man' updates all files in the
subdirectories
`cvs update .' or just `cvs update' updates
all files in the tc directory
If no arguments are given to update it will
update all files in the current working directory and
all its subdirectories. In other words, `.' is a
default argument to update. This is also true
for most of the CVS subcommands, not only the
update command.
The recursive behavior of the CVS subcommands can be
turned off with the `-l' option.
Conversely, the `-R' option can be used to force recursion if
`-l' is specified in `~/.cvsrc' (see section A.3 Default options and the ~/.cvsrc file).
$ cvs update -l # Don't update files in subdirectories