Copying the behavior of the "SAY" command of Mac

linux-say.sh

#!/bin/bash

function say { # Similar to the cli say on Mac
  pico2wave -l fr-FR -w speech.wav "$@"
  play speech.wav &> /dev/null
  rm speech.wav
}

alias clock='say "Il est $(date +%H) heure $(date +%M)"'

For an other language, change fr-FR by one of these:

• en-US
• en-GB
• es-ES
• de-DE
• it-IT