(command.CommandList children: [ (command.ShAssignment pairs: [ (assign_pair lhs: (sh_lhs_expr.Name name:TMPDIR) op: assign_op.Equal rhs: { (command_sub left_token: (Token id:Id.Left_Backtick val:'`' span_id:12) command_list: (command.CommandList children:[(C {(pwd)})]) ) } spids: [11] ) ] ) (C {(export)} {(TMPDIR)}) (C {(exec)} {(DQ (${ Id.VSub_Name srcdir) (/test-set-mode-acl.sh))}) ] )