  The production of {\Xi}$^{-}$ and {\Omega}$^{-}$ baryons and their
anti-particles in pp, p-Pb and Pb-Pb collisions has been measured by the ALICE
Collaboration. These hyperons are reconstructed via the detection of their
charged weak-decay products, which are identified through their measured
ionisation losses and momenta in the ALICE Time Projection Chamber. Comparing
the production yields in Pb-Pb and pp collisions, a strangeness enhancement has
been measured and found to increase with the centrality of the collision and
with the strangeness content of the baryon; moreover, in the comparison with
similar measurements at lower energies, it decreases as the centre-of-mass
energy increases, following the trend already observed moving from SPS to RHIC.
Recent measurement of cascade and {\Omega} in p-Pb interactions are compared
with results in Pb-Pb and pp collisions and with predictions from thermal
models, based on a grand canonical approach. The nuclear modification factors
for the charged {\Xi} and {\Omega}, compared to the ones for the lighter
particles, are also presented.
