(List
  (Com {[LIT_CHARS set]} {[LIT_CHARS -e]}  )
  (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('dir', {[DQ [VarSub 1]]})])
  (If
    (Com {[LIT_DBRACKET_LIKE "["]} {[LIT_CHARS -z]} {[DQ [VarSub dir]]} {[LIT_DBRACKET_LIKE "]"]}    )
    (List
      (List redirects=[(DescriptorRedirectNode target={[LIT_CHARS 2]} <REDIR_GREATAND ">&"> 1)]
        (Com {[LIT_CHARS echo]} {[SQ <LIT_CHARS "This script is for destroying old /var/lib/docker directories more safely than">]}        )
        (Com {[LIT_CHARS echo]} {[SQ <LIT_CHARS "  \"rm -rf\", which can cause data loss or other serious issues.">]}        )
        (Com {[LIT_CHARS echo]}        )
        (Com {[LIT_CHARS echo]} {[DQ [LIT_CHARS "usage: "][VarSub 0][LIT_CHARS " directory"]]}        )
        (Com {[LIT_CHARS echo]} {[DQ [LIT_CHARS "   ie: "][VarSub 0][LIT_CHARS " /var/lib/docker"]]}        )
      )
      (Com {[LIT_CHARS exit]} {[LIT_CHARS 1]}      )
    )
  )
  (If
    (Com {[LIT_DBRACKET_LIKE "["]} {[DQ [ComSub (Com {[LIT_CHARS id]} {[LIT_CHARS -u]})]]} {[LIT_NEQUAL "!="]} {[LIT_CHARS 0]} {[LIT_DBRACKET_LIKE "]"]}    )
    (List
      (Com {[LIT_CHARS echo]} {[DQ [LIT_CHARS "error: "][VarSub 0][LIT_CHARS " must be run as root"]]}
        <
        (DescriptorRedirectNode target={[LIT_CHARS 2]} <REDIR_GREATAND ">&"> 1),
        >
      )
      (Com {[LIT_CHARS exit]} {[LIT_CHARS 1]}      )
    )
  )
  (If
    (Com {[LIT_DBRACKET_LIKE "["]} {[LIT_OTHER "!"]} {[LIT_CHARS -d]} {[DQ [VarSub dir]]} {[LIT_DBRACKET_LIKE "]"]}    )
    (List
      (Com {[LIT_CHARS echo]} {[DQ [LIT_CHARS "error: "][VarSub dir][LIT_CHARS " is not a directory"]]}
        <
        (DescriptorRedirectNode target={[LIT_CHARS 2]} <REDIR_GREATAND ">&"> 1),
        >
      )
      (Com {[LIT_CHARS exit]} {[LIT_CHARS 1]}      )
    )
  )
  (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('dir', {[DQ [ComSub (Com {[LIT_CHARS readlink]} {[LIT_CHARS -f]} {[DQ [VarSub dir]]})]]})])
  (Com {[LIT_CHARS echo]}  )
  (Com {[LIT_CHARS echo]} {[DQ [LIT_CHARS "Nuking "][VarSub dir][LIT_CHARS " ..."]]}  )
  (Com {[LIT_CHARS echo]} {[SQ <LIT_CHARS "  (if this is wrong, press Ctrl+C NOW!)">]}  )
  (Com {[LIT_CHARS echo]}  )
  (Subshell
    (List
      (Com {[LIT_CHARS set]} {[LIT_CHARS -x]}      )
      (Com {[LIT_CHARS sleep]} {[LIT_CHARS 10]}      )
    )
  )
  (Com {[LIT_CHARS echo]}  )
  (FunctionDef dir_in_dir []
    (List
      (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('inner', {[DQ [VarSub 1]]})])
      (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('outer', {[DQ [VarSub 2]]})])
      (Com {[LIT_DBRACKET_LIKE "["]} {[DQ [VarSub inner transform_ops=[VS_UNARY_POUND {[VarSub outer]}]]]} {[LIT_NEQUAL "!="]} {[DQ [VarSub inner]]} {[LIT_DBRACKET_LIKE "]"]}      )
    )
  )
  (For mount [{[ComSub (Com {[LIT_CHARS awk]} {[SQ <LIT_CHARS "{ print $5 }">]} {[LIT_CHARS /proc/self/mountinfo]})]}])
    (List
      (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('mount', {[DQ [ComSub (AndOr OP_OR_IF (Com {[LIT_CHARS readlink]} {[LIT_CHARS -f]} {[DQ [VarSub mount]]}) (Com {[LIT_CHARS true]}) )]]})])
      (If
        (Com {[LIT_CHARS dir_in_dir]} {[DQ [VarSub mount]]} {[DQ [VarSub dir]]}        )
        (Subshell
          (List
            (Com {[LIT_CHARS set]} {[LIT_CHARS -x]}            )
            (Com {[LIT_CHARS umount]} {[LIT_CHARS -f]} {[DQ [VarSub mount]]}            )
          )
        )
      )
    )
  )
  (If
    (Com {[LIT_CHARS command]} {[LIT_CHARS -v]} {[LIT_CHARS btrfs]}
      <
      (FilenameRedirectNode filename={[LIT_CHARS /dev/null]} <REDIR_GREAT ">"> 1),
      (DescriptorRedirectNode target={[LIT_CHARS 1]} <REDIR_GREATAND "2>&"> 2),
      >
    )
    (List
      (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('root', {[DQ [ComSub (Pipeline (Com {[LIT_CHARS df]} {[DQ [VarSub dir]]}) (Com {[LIT_CHARS awk]} {[SQ <LIT_CHARS "NR>1 { print $NF }">]}) )]]})])
      (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('root', {[DQ [VarSub root transform_ops=[VS_UNARY_POUND {[LIT_SLASH /]}]]]})])
      (For subvol [{[ComSub (Pipeline (Com redirects=[(FilenameRedirectNode filename={[LIT_CHARS /dev/null]} <REDIR_GREAT "2>"> 2)]{[LIT_CHARS btrfs]} {[LIT_CHARS subvolume]} {[LIT_CHARS list]} {[LIT_CHARS -o]} {[DQ [VarSub root][LIT_CHARS /]]}) (Com {[LIT_CHARS awk]} {[LIT_CHARS -F] [SQ <LIT_CHARS " path ">]} {[SQ <LIT_CHARS "{ print $2 }">]}) (Com {[LIT_CHARS sort]} {[LIT_CHARS -r]}) )]}])
        (List
          (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('subvolDir', {[DQ [VarSub root][LIT_CHARS /][VarSub subvol]]})])
          (If
            (Com {[LIT_CHARS dir_in_dir]} {[DQ [VarSub subvolDir]]} {[DQ [VarSub dir]]}            )
            (Subshell
              (List
                (Com {[LIT_CHARS set]} {[LIT_CHARS -x]}                )
                (Com {[LIT_CHARS btrfs]} {[LIT_CHARS subvolume]} {[LIT_CHARS delete]} {[DQ [VarSub subvolDir]]}                )
              )
            )
          )
        )
      )
    )
  )
  (Subshell
    (List
      (Com {[LIT_CHARS set]} {[LIT_CHARS -x]}      )
      (Com {[LIT_CHARS rm]} {[LIT_CHARS -rf]} {[DQ [VarSub dir]]}      )
    )
  )
)