Fusion de 2 fichiers

Bonjour,

je souhaiterais un script bash fusionnant 2 fichiers tout en virant les doublons.
Exemple :

fic1 :
toto
titi

fic2 :
toto
tata

R�sultat souhait�, fic 3 :
toto
titi
tata

Merci.

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