HO wolding is a cut-rate irregular-route truckload carrier. The term "linehaul" implies dedicated terminal-to-terminal drop/hook. Mostly associated with the LTL outfits although foodservice, small parcel (UPS & FedEX) and others run linehaul operations as well.
Werner has a program called NETOPS which involves shuttling trailers between drop yards, terminals, and customers for 10 bucks an hour. So it's "line-haul" in a sense, but at those wages I'd sure as hell "haul"-a$$ away from a deal like that. How Werner manages to get meat in those seats for what they pay is a mystery to me. But low wages, long hours, unpaid waitng around, and piece-rate mileage pay = "that's trucking", "part of the job", "without trucks America stops", etc, etc, etc...
Some Conway locations have driver apprentice programs if you have no prior driving experience. You will have to start on the dock, and work your way to the road.
If you have your Class A license, with some prior driving, as in Class B, they will take you with no Class A experience. That's in Minnesota!