Tutorial for how to use symlinks

Symlink Tutorial.md

Copy and paste into terminal:

echo "This is example.txt" > example.txt
cat example.txt
ln -s example.txt symlink.txt
cat example.txt
cat symlink.txt
echo "UPDATED" >> example.txt
cat example.txt
cat symlink.txt 

When it runs, it will look like this:

  $ echo "This is example.txt" > example.txt

  $ cat example.txt
  This is example.txt

  $ ln -s example.txt symlink.txt

  $ cat example.txt
  This is example.txt

  $ cat symlink.txt
  This is example.txt

  $ echo "UPDATED" >> example.txt

  $ cat example.txt
  This is example.txt
  UPDATED

  $ cat symlink.txt 
  This is example.txt
  UPDATED

When you look at the contents of symlink.txt, it will always be the contents of example.txt - even if example.txt changes.