What's the difference between using > and >> in shell?

Question

I\'ve seen somewhere that we can use >> in shell. What\'s the difference between using > and >> in shell?

Answer 1

Adding more knowledge here.

We can also use tee command to perform the same:

cat newfile | tee filename - rewrites/replaces the file with new content in filename
cat newfile | tee -a filename - appends to the existing content of the file in filename file