Set up a hard or symbolic link (pseudonyms) to files and directories.
ln [options] existing_file new_name
-b makes backup copy of files about to be removed.
-d creates a hard link to a directory (only root can do this).
-f removes the existing file with new_name.
—help displays a Help message.
-s creates a symbolic link.
-v displays verbose output.
The ln command assigns a new name to an existing file. With the -s option, you can create symbolic links that can exist across file systems. Also, with symbolic links, you can see the link information with the ls -l command. Otherwise, ls -l shows two distinct files for a file and its hard link.