$ curl cheat.sh/
 cheat:ln 
# To create a symlink:
ln -s <source-location> <symlink-location>

# To symlink, while overwriting existing destination files
ln -sf <source-location> <symlink-location>

 tldr:ln 
# ln
# Creates links to files and directories.
# More information: <https://www.gnu.org/software/coreutils/ln>.

# Create a symbolic link to a file or directory:
ln -s /path/to/file_or_directory path/to/symlink

# Overwrite an existing symbolic link to point to a different file:
ln -sf /path/to/new_file path/to/symlink

# Create a hard link to a file:
ln /path/to/file path/to/hardlink

$
Follow @igor_chubin cheat.sh