bash - How to sort first directories then files etc… when using “ls” in Unix

I would like to use the ls command to first show directories and then files. I tried:

ls -la | sort -k 1

But I got a wrong order.

Answer

The following command will list directories first, ordinary files second, and links third.

ls -la | grep "^d" && ls -la | grep "^-" && ls -la | grep "^l"

Also, it would make a great deal of sense to create an alias for this command to save keystrokes.

Edit:

If you want directories first, and then everything that is not a directory second, use this:

ls -la | grep "^d" && ls -la | grep -v "^d"