(CommandList
  children: [
    (C {(echo)} {(DQ ('*** PACK ROOTFS BEGIN ***'))})
    (Assignment
      keyword: Assign_None
      pairs: [
        (assign_pair
          lhs: (LhsName name:SRC_DIR)
          op: Equal
          rhs: 
            {
              (CommandSubPart
                command_list: (CommandList children:[(C {(pwd)})])
                left_token: <Left_CommandSub '$('>
                spids: [12 14]
              )
            }
          spids: [11]
        )
      ]
      spids: [11]
    )
    (C {(cd)} {(work)})
    (C {(echo)} {(DQ ('Packing initramfs. This may take a while...'))})
    (C {(rm)} {(-f)} {(rootfs.cpio.gz)})
    (C {(cd)} {(rootfs)})
    (Pipeline
      children: [
        (C {(find)} {(.)})
        (C {(cpio)} {(-R)} {(root) (Lit_Other ':') (root)} {(-H)} {(newc)} {(-o)})
        (SimpleCommand
          words: [{(xz)} {(-9)} {(--check) (Lit_Other '=') (none)}]
          redirects: [(Redir op:<Redir_Great '>'> fd:16777215 arg_word:{(../rootfs.cpio.xz)})]
        )
      ]
      negated: F
    )
    (C {(echo)} {(DQ ('Packing of initramfs has finished.'))})
    (C {(cd)} {($ VSub_Name '$SRC_DIR')})
    (C {(echo)} {(DQ ('*** PACK ROOTFS END ***'))})
  ]
)