need help with simple code

im trying to setup a computer so when it recives a input in the back it will activate the side bundled cable


here in my currnt code but its not working

rs.getInput("back") if ("true") then
rs.setOutput("right", true)
end

im a noob and i need help

This is what your code is actually doing

rs.getInput("back")  -- finds out if the redstone in back is on, and then promptly ignores/forgets it
if ("true") then -- this is always true
rs.setOutput("right", true) -- always turns on the power
end
-- stops running, so if something happens to the back, it wouldnt know

What you want is a comparsion

if rs.getInput("back") == true then

awww sweet thanks man im using this for a tic tac toe game