To give permission

[S. M. Ibrahim]

I want to give permission to user (current ) to read & write on a specify folder.
How can i do this?

[bigtomrodney]

Change to the parent directory, (or at least leave the directory you want to change) then either make that person a member of a group who will have the group ownership of the directory
, make that user the owner, or make it available to all users.

Making it read write for all users is

chmod 776 $directory_to_change

I've gotten a little reliant on gui tools for manging users I'm ashamed to say, and I'm away from my linux box. Look at adduser or useradd. If oyu simply want to switch the ownership of the directory use chown.

[S. M. Ibrahim]

Thanks,
I complete this by using KDE configuration tools.