Say you want to copy a file from the remote server to your own computer, a file called my_file.txt. In this case, you would issue the following command in your terminal:

scp your_login@addres.of.remote.server:my_file.txt .

This makes your computer connect to the server with the login you provide, and copy the my_file.txt file to the directory you are currently working (using the exact same file name locally on your computer, that’s why there is a dot in the end of the command).

undefined method `quote_ident' for PGconn:Class

… when you have updated your rails to version >2.2, you can solve the above problem by 1) creating a new file in config/initializers with the name new_rails_defaults.rb, and 2) insert the following content:

def PGconn.quote_ident(name)
%("#{name}")
end


… so the file looks like this, thus making your rails application work again:

new_rails_defaults.rb with the code shown in TextMate.