Help with script "Skill Teaching Equipment & Items"

[Teyan2012]

Hi, I have the question?
I need this script with another branch.
For Example:
/ls[x, y, z]
where:
x - skill id
y - variable id
z - value of variable[y]
and this:
if variable[y] is >= z
then actor can use skill

• else actor can't.
  Can do this? Please help me