[Fedora-directory-users] Script to Change Passwords?

[Glenn]

Howdy, Guys - I need a shell script that will read a file of user IDs and 
passwords and enter the passwords into Fedora Directory.  The users are 
already in FD; we just need to change all their passwords at once.  The file 
will be formatted so the user ID is in column one and the password is in 
column two.  We have about 8,000 users.  Any help appreciated.  Thanks.   -
Glenn.