I do a Big permission mistake

[Khalid EZZARAOUI <ezak@cybercable.fr>]

hello,

never, never do :
    chmod -R   o+r   .*
anywhere. (I do it in /home).

After doing this as root, I lose a lot of right acces every were for
users.
    user can't use bash, profile dir, libreadline lib .....

is there a way to solve this ?
    using apt-get and force to download all my package and to install
them again ? (but how?)

Thanks.


My sys : potato + kernel2.2.5