Copying files or directories

• To make a copy of a file type cp <file1> <file2> (if <file2> already exists then it will be overwritten with the contents of <file1>).
• To copy a file into another directory type cp <file1> <dir_name>
• To copy the contents of one directory into another directory use the command:
  cp -r <dir_name1> <dir_name2>. The option -r stands for recursive since the first directory is recursively copied in to the second directory, that is, all subdirectories inside the directory being copied are also copied recursively and so on.