(command.CommandList
  children: [
    (command.ShAssignment
      pairs: [
        (assign_pair
          lhs: (sh_lhs_expr.Name name:TOOLPATH)
          op: assign_op.Equal
          rhs: {<'/sbin'>}
          spids: [18]
        )
      ]
    )
    (command.ShAssignment
      pairs: [
        (assign_pair
          lhs: (sh_lhs_expr.Name name:DISKCOMMAND)
          op: assign_op.Equal
          rhs: {<sgdisk>}
          spids: [24]
        )
      ]
    )
    (command.ShAssignment
      pairs: [
        (assign_pair
          lhs: (sh_lhs_expr.Name name:ZAPFLAGS)
          op: assign_op.Equal
          rhs: {(DQ <-Zog>)}
          spids: [30]
        )
      ]
    )
    (command.ShAssignment
      pairs: [
        (assign_pair
          lhs: (sh_lhs_expr.Name name:GUARDFILE)
          op: assign_op.Equal
          rhs: {<'/etc/ceph-disks-zapped'>}
          spids: [35]
        )
      ]
    )
    (command.If
      arms: [
        (if_arm
          cond: 
            (condition.Shell
              commands: [
                (command.Sentence
                  child: 
                    (command.Pipeline
                      children: [
                        (command.Simple
                          words: [{<dpkg>} {<-s>} {<gdisk>}]
                          redirects: [
                            (redir
                              op: <Id.Redir_Great '2>'>
                              loc: (redir_loc.Fd fd:2)
                              arg: {<'/dev/null'>}
                            )
                          ]
                          do_fork: T
                        )
                        (C {<grep>} {<-q>} {<Status.> <Id.Lit_Star '*'> <installed>})
                      ]
                      negated: F
                    )
                  terminator: <Id.Op_Semi _>
                )
              ]
            )
          action: [(C {<echo>} {(DQ <'gdisk is installed'>)})]
          spids: [39 61]
        )
      ]
      else_action: [
        (C {<echo>} {(DQ <'install gdisk...'>)})
        (C {<apt-get>} {<install>} {<--allow-unauthenticated>} {<-y>} {<gdisk>})
      ]
    )
    (command.If
      arms: [
        (if_arm
          cond: 
            (condition.Shell
              commands: [
                (command.Sentence
                  child: 
                    (command.DBracket
                      expr: 
                        (bool_expr.Unary
                          op_id: Id.BoolUnary_z
                          child: 
                            {
                              (command_sub
                                left_token: <Id.Left_Backtick '`'>
                                child: (C {<which>} {($ Id.VSub_DollarName '$DISKCOMMAND')})
                              )
                            }
                        )
                    )
                  terminator: <Id.Op_Semi _>
                )
              ]
            )
          action: [
            (C {<echo>} {(DQ <'can\'t find \''> ($ Id.VSub_DollarName '$DISKCOMMAND') <'\''>)})
            (command.ControlFlow token:<Id.ControlFlow_Exit exit>)
          ]
          spids: [92 109]
        )
      ]
    )
    (command.If
      arms: [
        (if_arm
          cond: 
            (condition.Shell
              commands: [
                (command.Sentence
                  child: 
                    (command.DBracket
                      expr: 
                        (bool_expr.LogicalNot
                          child: 
                            (bool_expr.Unary
                              op_id: Id.BoolUnary_f
                              child: {($ Id.VSub_DollarName '$GUARDFILE')}
                            )
                        )
                    )
                  terminator: <Id.Op_Semi _>
                )
              ]
            )
          action: [
            (command.ShAssignment
              pairs: [
                (assign_pair
                  lhs: (sh_lhs_expr.Name name:mounted_whole_disks)
                  op: assign_op.Equal
                  rhs: 
                    {
                      (command_sub
                        left_token: <Id.Left_DollarParen '$('>
                        child: 
                          (command.Pipeline
                            children: [
                              (C {<df>} {<-kh>})
                              (C {<cut>} {<-f>} {<1>} {<-d> (SQ <' '>)})
                              (C {<tail>} {<-n> <Id.Lit_Other '+'> <2>})
                              (C {<grep>} {(SQ <'^/dev/sd'>)})
                              (C {<sed>} {(SQ <'s/[0-9]/|/'>)})
                              (C {<sort>} {<-u>})
                            ]
                            negated: F
                          )
                      )
                    }
                  spids: [149]
                )
              ]
            )
            (command.ShAssignment
              pairs: [
                (assign_pair
                  lhs: (sh_lhs_expr.Name name:mounted_disk_regex)
                  op: assign_op.Equal
                  rhs: 
                    {
                      (command_sub
                        left_token: <Id.Left_DollarParen '$('>
                        child: 
                          (command.ForEach
                            iter_name: disk
                            iter_words: [{($ Id.VSub_DollarName '$mounted_whole_disks')}]
                            do_arg_iter: F
                            body: 
                              (command.DoGroup
                                children: [
                                  (command.Sentence
                                    child: (C {<echo>} {<-n>} {($ Id.VSub_DollarName '$disk')})
                                    terminator: <Id.Op_Semi _>
                                  )
                                ]
                              )
                          )
                      )
                    }
                  spids: [204]
                )
              ]
            )
            (command.ForEach
              iter_name: disk
              iter_words: [
                {
                  (command_sub
                    left_token: <Id.Left_DollarParen '$('>
                    child: (C {<ls>} {<'/dev/sd'> <Id.Lit_LBracket '['> <a-z> <Id.Lit_RBracket ']'>})
                  )
                }
              ]
              do_arg_iter: F
              body: 
                (command.DoGroup
                  children: [
                    (command.If
                      arms: [
                        (if_arm
                          cond: 
                            (condition.Shell
                              commands: [
                                (command.Sentence
                                  child: 
                                    (command.Pipeline
                                      children: [
                                        (C {<echo>} {(DQ ($ Id.VSub_DollarName '$disk'))})
                                        (C {<egrep>} {<-q>} 
                                          {
                                            (DQ 
                                              (braced_var_sub
                                                token: <Id.VSub_Name mounted_disk_regex>
                                                suffix_op: 
                                                  (suffix_op.Slice
                                                    begin: {<Id.Lit_Digits 0>}
                                                    length: 
                                                      (arith_expr.Unary
                                                        op_id: Id.Node_UnaryMinus
                                                        child: {<Id.Lit_Digits 1>}
                                                      )
                                                  )
                                              )
                                            )
                                          }
                                        )
                                      ]
                                      negated: T
                                    )
                                  terminator: <Id.Op_Semi _>
                                )
                              ]
                            )
                          action: [
                            (C {<echo>} 
                              {
                                (DQ <'#### Overwriting '> ($ Id.VSub_DollarName '$disk') <' with '> 
                                  ($ Id.VSub_DollarName '$DISKCOMMAND') <' '> ($ Id.VSub_DollarName '$ZAPFLAGS')
                                )
                              }
                            )
                            (C 
                              {($ Id.VSub_DollarName '$TOOLPATH') <'/'> 
                                ($ Id.VSub_DollarName '$DISKCOMMAND')
                              } {($ Id.VSub_DollarName '$ZAPFLAGS')} {($ Id.VSub_DollarName '$disk')}
                            )
                          ]
                          spids: [248 276]
                        )
                      ]
                      else_action: [
                        (C {<echo>} 
                          {(DQ <'#### Skipping mounted disk '> ($ Id.VSub_DollarName '$disk'))}
                        )
                      ]
                    )
                  ]
                )
            )
          ]
          spids: [129 142]
        )
      ]
      else_action: [(C {<echo>} {(DQ <'disks look zapped already'>)})]
    )
    (C {<touch>} {<'/etc/ceph-disks-zapped'>})
  ]
)