get_group( ‘[foo]bar’ ) -> [‘bar’, ‘[foo]’]
Ensures the root certificate in chain is self-signed and valid for time.
Adds a local gem requested using dep_name with the given spec that can be loaded and installed using the source.
Tokenize string returning the Ruby object
Returns true if the named file is a directory, or a symlink that points at a directory, and false otherwise.
file_name can be an IO object.
File.directory?(".")
Returns an array of the eigenvectors
Puts the connection into binary (image) mode, issues the given server-side command (such as “STOR myfile”), and sends the contents of the file named file to the server. If the optional block is given, it also passes it the data, in chunks of blocksize characters.
Puts the connection into ASCII (text) mode, issues the given server-side command (such as “STOR myfile”), and sends the contents of the file named file to the server, one line at a time. If the optional block is given, it also passes it the lines.