Or install espeak:

$ sudo apt-get install espeak # For Debian
$ sudo pacman -S espeak # For Arch Linux

And to make it speak:

$ espeak "Hello World" # Replace Hello World with your text, must be enclosed by ""
$ espeak -f <file> # Read out file <file>

You could install espeak:

$ sudo apt-get install espeak # For Debian
$ sudo pacman -S espeak # For Arch Linux

To make it speak:

$ espeak "Hello World" # Replace Hello World with your text, must be enclosed by ""
$ espeak -f <file> # Read out file <file>