(command.Pipeline children: [ (C {(tr)} {(-cd)} {(SQ (Token id:Id.Lit_Chars val:'[.\\n0-9]' span_id:47))}) (C {(sed)} {(SQ (Token id:Id.Lit_Chars val:'/^$/d' span_id:58))}) (C {(paste)} {(-s)} {(-d) (Id.Lit_Other '+')}) (C {(bc)}) ] negated: F )