copy directory command in linux

C++
cp -R source_dir destination_dir
#example
cp -R /etc /etc_backup$ cp -R <source_folder> <destination_folder>$ cp -R <source_folder_1> <source_folder_2> ... <source_folder_n>  <destination_folder>$ cp -R <source_folder>/* <destination_folder>
Source

Also in C++: