  We introduce here a classification of unimodal maps $[0, 1]\rightarrow [0,
1]$, which commute with piecewise linear surjective maps $[0, 1]\rightarrow [0,
1]$.
  Remind that if continuous piecewise linear unimodal map $g$ commutes with a
non-constant piecewise linear map $\psi$, which is not an iteration of $g$,
then $g$ is topologically conjugated with the tent map by piecewise linear
conjugacy.
  We use the obtained classification to illustrate the mentioned fact.
