The first time the svn command-line
client is executed, it creates a
per-user configuration area. On
Unix-like systems, this area appears
as a directory named .subversion in
the user's home directory.
(Runtime Configuration Area in the Version Control with Subversion online manual.)
There should be a file named config under ~/.subversion that's already heavily commented to get you started. As for your example, the Config section in the online manual has these:
store-passwords
This instructs Subversion to cache, or
not to cache, passwords that are
supplied by the user in response to
server authentication challenges. The
default value is yes. Set this to no
to disable this on-disk password
caching. You can override this option
for a single instance of the svn
command using the --no-auth-cache
command-line parameter (for those
subcommands that support it). For more
information, see the section called
“Client Credentials Caching”.
store-auth-creds
This setting is the same as
store-passwords, except that it
enables or disables on-disk caching of
all authentication information:
usernames, passwords, server
certificates, and any other types of
cacheable credentials.
