$ curl cheat.sh/

# espeak
# Uses text-to-speech to speak through the default sound device.
# More information: <http://espeak.sourceforge.net>.

# Speak a phrase aloud:
espeak "I like to ride my bike."

# Speak a file aloud:
espeak -f path/to/file

# Save output to a WAV audio file, rather than speaking it directly:
espeak -w filename.wav "It's GNU plus Linux"

# Use a different voice:
espeak -v voice

$

Follow @igor_chubin cheat.sh tldr