To get the current working directory in Ruby, the Dir class provides the pwd method. Here's an example:
# Get current working directory
dir_path = Dir.pwd
puts "Current working directory: #{dir_path}"
This will output the current working directory of your Ruby program.
If you want to change the current working directory, you can use the chdir method also provided by the Dir class. For example:
# Change working directory
Dir.chdir('/path/to/new/dir')
puts "New current working directory: #{Dir.pwd}"
This will change the current working directory to /path/to/new/dir and output the new path.