.status = 99
status = 127
.pids [801, 802]
job_ids [1, 2]
i=8
i=9
.pids [805, 806, 808]
job_ids [1, 2, 3]
i=7
i=8
i=9
.pids [811, 812]
job_ids [1, 2]
i=8
i=9
.pids [815, 816, 818]
job_ids [1, 2, 3]
i=7
i=8
i=9
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------------------------------------------------------------
ls | cut -d . -f 1 | head
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------------------------------------------------------------
ls | cut -d . -f 1 | head
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        keyword:<ControlFlow_Exit exit>
        arg_word:(w <Lit_Number 7>)
      )
      right:<Right_Subshell ")">
      is_last_cmd:F
    )
  ]
  ops:[<Op_Pipe "|"> <Op_Pipe "|">]
)
(command.Pipeline
  children:[
    (C (w <Lit_Chars sleep>) (w <Lit_Chars 0.09>))
    (C (w <Lit_Chars cat>))
    (command.Subshell
      left:<Op_LParen "(">
      child:(command.ControlFlow
        keyword:<ControlFlow_Exit exit>
        arg_word:(w <Lit_Number 9>)
      )
      right:<Right_Subshell ")">
      is_last_cmd:F
    )
  ]
  ops:[<Op_Pipe "|"> <Op_Pipe "|">]
)
(command.Pipeline
  children:[
    (C (w <Lit_Chars sleep>) (w <Lit_Chars 0.08>))
    (C (w <Lit_Chars cat>))
    (command.Subshell
      left:<Op_LParen "(">
      child:(command.ControlFlow
        keyword:<ControlFlow_Exit exit>
        arg_word:(w <Lit_Number 8>)
      )
      right:<Right_Subshell ")">
      is_last_cmd:F
    )
  ]
  ops:[<Op_Pipe "|"> <Op_Pipe "|">]
)
(command.Pipeline
  children:[
    (C (w <Lit_Chars sleep>) (w <Lit_Chars 0.09>))
    (C (w <Lit_Chars cat>))
    (command.Subshell
      left:<Op_LParen "(">
      child:(command.ControlFlow
        keyword:<ControlFlow_Exit exit>
        arg_word:(w <Lit_Number 9>)
      )
      right:<Right_Subshell ")">
      is_last_cmd:F
    )
  ]
  ops:[<Op_Pipe "|"> <Op_Pipe "|">]
)
(command.Pipeline
  children:[
    (C (w <Lit_Chars sleep>) (w <Lit_Chars 0.08>))
    (C (w <Lit_Chars cat>))
    (command.Subshell
      left:<Op_LParen "(">
      child:(command.ControlFlow
        keyword:<ControlFlow_Exit exit>
        arg_word:(w <Lit_Number 8>)
      )
      right:<Right_Subshell ")">
      is_last_cmd:F
    )
  ]
  ops:[<Op_Pipe "|"> <Op_Pipe "|">]
)
(command.Pipeline
  children:[
    (C (w <Lit_Chars sleep>) (w <Lit_Chars 0.07>))
    (C (w <Lit_Chars cat>))
    (command.Subshell
      left:<Op_LParen "(">
      child:(command.ControlFlow
        keyword:<ControlFlow_Exit exit>
        arg_word:(w <Lit_Number 7>)
      )
      right:<Right_Subshell ")">
      is_last_cmd:F
    )
  ]
  ops:[<Op_Pipe "|"> <Op_Pipe "|">]
)
('BEFORE', ['0', '1', '2', '3', '4'])
('AFTER', ['0', '1', '2', '3', '4'])
------------------------------------------------------------
ls | cut -d . -f 1 | head
[-1, -1, 0]
[-1, -1, -1, 0]
testpipeline
(command.Pipeline
  children:[
    (C (w <Lit_Chars sleep>) (w <Lit_Chars 0.09>))
    (C (w <Lit_Chars cat>))
    (command.Subshell
      left:<Op_LParen "(">
      child:(command.ControlFlow
        keyword:<ControlFlow_Exit exit>
        arg_word:(w <Lit_Number 9>)
      )
      right:<Right_Subshell ")">
      is_last_cmd:F
    )
  ]
  ops:[<Op_Pipe "|"> <Op_Pipe "|">]
)
(command.Pipeline
  children:[
    (C (w <Lit_Chars sleep>) (w <Lit_Chars 0.08>))
    (C (w <Lit_Chars cat>))
    (command.Subshell
      left:<Op_LParen "(">
      child:(command.ControlFlow
        keyword:<ControlFlow_Exit exit>
        arg_word:(w <Lit_Number 8>)
      )
      right:<Right_Subshell ")">
      is_last_cmd:F
    )
  ]
  ops:[<Op_Pipe "|"> <Op_Pipe "|">]
)
(command.Pipeline
  children:[
    (C (w <Lit_Chars sleep>) (w <Lit_Chars 0.09>))
    (C (w <Lit_Chars cat>))
    (command.Subshell
      left:<Op_LParen "(">
      child:(command.ControlFlow
        keyword:<ControlFlow_Exit exit>
        arg_word:(w <Lit_Number 9>)
      )
      right:<Right_Subshell ")">
      is_last_cmd:F
    )
  ]
  ops:[<Op_Pipe "|"> <Op_Pipe "|">]
)
(command.Pipeline
  children:[
    (C (w <Lit_Chars sleep>) (w <Lit_Chars 0.08>))
    (C (w <Lit_Chars cat>))
    (command.Subshell
      left:<Op_LParen "(">
      child:(command.ControlFlow
        keyword:<ControlFlow_Exit exit>
        arg_word:(w <Lit_Number 8>)
      )
      right:<Right_Subshell ")">
      is_last_cmd:F
    )
  ]
  ops:[<Op_Pipe "|"> <Op_Pipe "|">]
)
(command.Pipeline
  children:[
    (C (w <Lit_Chars sleep>) (w <Lit_Chars 0.07>))
    (C (w <Lit_Chars cat>))
    (command.Subshell
      left:<Op_LParen "(">
      child:(command.ControlFlow
        keyword:<ControlFlow_Exit exit>
        arg_word:(w <Lit_Number 7>)
      )
      right:<Right_Subshell ")">
      is_last_cmd:F
    )
  ]
  ops:[<Op_Pipe "|"> <Op_Pipe "|">]
)
(command.Pipeline
  children:[
    (C (w <Lit_Chars sleep>) (w <Lit_Chars 0.09>))
    (C (w <Lit_Chars cat>))
    (command.Subshell
      left:<Op_LParen "(">
      child:(command.ControlFlow
        keyword:<ControlFlow_Exit exit>
        arg_word:(w <Lit_Number 9>)
      )
      right:<Right_Subshell ")">
      is_last_cmd:F
    )
  ]
  ops:[<Op_Pipe "|"> <Op_Pipe "|">]
)
(command.Pipeline
  children:[
    (C (w <Lit_Chars sleep>) (w <Lit_Chars 0.08>))
    (C (w <Lit_Chars cat>))
    (command.Subshell
      left:<Op_LParen "(">
      child:(command.ControlFlow
        keyword:<ControlFlow_Exit exit>
        arg_word:(w <Lit_Number 8>)
      )
      right:<Right_Subshell ")">
      is_last_cmd:F
    )
  ]
  ops:[<Op_Pipe "|"> <Op_Pipe "|">]
)
(command.Pipeline
  children:[
    (C (w <Lit_Chars sleep>) (w <Lit_Chars 0.09>))
    (C (w <Lit_Chars cat>))
    (command.Subshell
      left:<Op_LParen "(">
      child:(command.ControlFlow
        keyword:<ControlFlow_Exit exit>
        arg_word:(w <Lit_Number 9>)
      )
      right:<Right_Subshell ")">
      is_last_cmd:F
    )
  ]
  ops:[<Op_Pipe "|"> <Op_Pipe "|">]
)
(command.Pipeline
  children:[
    (C (w <Lit_Chars sleep>) (w <Lit_Chars 0.08>))
    (C (w <Lit_Chars cat>))
    (command.Subshell
      left:<Op_LParen "(">
      child:(command.ControlFlow
        keyword:<ControlFlow_Exit exit>
        arg_word:(w <Lit_Number 8>)
      )
      right:<Right_Subshell ")">
      is_last_cmd:F
    )
  ]
  ops:[<Op_Pipe "|"> <Op_Pipe "|">]
)
(command.Pipeline
  children:[
    (C (w <Lit_Chars sleep>) (w <Lit_Chars 0.07>))
    (C (w <Lit_Chars cat>))
    (command.Subshell
      left:<Op_LParen "(">
      child:(command.ControlFlow
        keyword:<ControlFlow_Exit exit>
        arg_word:(w <Lit_Number 7>)
      )
      right:<Right_Subshell ")">
      is_last_cmd:F
    )
  ]
  ops:[<Op_Pipe "|"> <Op_Pipe "|">]
)
('BEFORE', ['0', '1', '2', '3', '4'])
('AFTER', ['0', '1', '2', '3', '4'])
------------------------------------------------------------
ls | cut -d . -f 1 | head
[-1, -1, 0]
[-1, -1, -1, 0]
Sat Dec  6 02:17:25 UTC 2025
date returned 0
(command.Pipeline
  children:[
    (C (w <Lit_Chars sleep>) (w <Lit_Chars 0.09>))
    (C (w <Lit_Chars cat>))
    (command.Subshell
      left:<Op_LParen "(">
      child:(command.ControlFlow
        keyword:<ControlFlow_Exit exit>
        arg_word:(w <Lit_Number 9>)
      )
      right:<Right_Subshell ")">
      is_last_cmd:F
    )
  ]
  ops:[<Op_Pipe "|"> <Op_Pipe "|">]
)
(command.Pipeline
  children:[
    (C (w <Lit_Chars sleep>) (w <Lit_Chars 0.08>))
    (C (w <Lit_Chars cat>))
    (command.Subshell
      left:<Op_LParen "(">
      child:(command.ControlFlow
        keyword:<ControlFlow_Exit exit>
        arg_word:(w <Lit_Number 8>)
      )
      right:<Right_Subshell ")">
      is_last_cmd:F
    )
  ]
  ops:[<Op_Pipe "|"> <Op_Pipe "|">]
)
(command.Pipeline
  children:[
    (C (w <Lit_Chars sleep>) (w <Lit_Chars 0.09>))
    (C (w <Lit_Chars cat>))
    (command.Subshell
      left:<Op_LParen "(">
      child:(command.ControlFlow
        keyword:<ControlFlow_Exit exit>
        arg_word:(w <Lit_Number 9>)
      )
      right:<Right_Subshell ")">
      is_last_cmd:F
    )
  ]
  ops:[<Op_Pipe "|"> <Op_Pipe "|">]
)
(command.Pipeline
  children:[
    (C (w <Lit_Chars sleep>) (w <Lit_Chars 0.08>))
    (C (w <Lit_Chars cat>))
    (command.Subshell
      left:<Op_LParen "(">
      child:(command.ControlFlow
        keyword:<ControlFlow_Exit exit>
        arg_word:(w <Lit_Number 8>)
      )
      right:<Right_Subshell ")">
      is_last_cmd:F
    )
  ]
  ops:[<Op_Pipe "|"> <Op_Pipe "|">]
)
(command.Pipeline
  children:[
    (C (w <Lit_Chars sleep>) (w <Lit_Chars 0.07>))
    (C (w <Lit_Chars cat>))
    (command.Subshell
      left:<Op_LParen "(">
      child:(command.ControlFlow
        keyword:<ControlFlow_Exit exit>
        arg_word:(w <Lit_Number 7>)
      )
      right:<Right_Subshell ")">
      is_last_cmd:F
    )
  ]
  ops:[<Op_Pipe "|"> <Op_Pipe "|">]
)
(command.Pipeline
  children:[
    (C (w <Lit_Chars sleep>) (w <Lit_Chars 0.09>))
    (C (w <Lit_Chars cat>))
    (command.Subshell
      left:<Op_LParen "(">
      child:(command.ControlFlow
        keyword:<ControlFlow_Exit exit>
        arg_word:(w <Lit_Number 9>)
      )
      right:<Right_Subshell ")">
      is_last_cmd:F
    )
  ]
  ops:[<Op_Pipe "|"> <Op_Pipe "|">]
)
(command.Pipeline
  children:[
    (C (w <Lit_Chars sleep>) (w <Lit_Chars 0.08>))
    (C (w <Lit_Chars cat>))
    (command.Subshell
      left:<Op_LParen "(">
      child:(command.ControlFlow
        keyword:<ControlFlow_Exit exit>
        arg_word:(w <Lit_Number 8>)
      )
      right:<Right_Subshell ")">
      is_last_cmd:F
    )
  ]
  ops:[<Op_Pipe "|"> <Op_Pipe "|">]
)
(command.Pipeline
  children:[
    (C (w <Lit_Chars sleep>) (w <Lit_Chars 0.09>))
    (C (w <Lit_Chars cat>))
    (command.Subshell
      left:<Op_LParen "(">
      child:(command.ControlFlow
        keyword:<ControlFlow_Exit exit>
        arg_word:(w <Lit_Number 9>)
      )
      right:<Right_Subshell ")">
      is_last_cmd:F
    )
  ]
  ops:[<Op_Pipe "|"> <Op_Pipe "|">]
)
(command.Pipeline
  children:[
    (C (w <Lit_Chars sleep>) (w <Lit_Chars 0.08>))
    (C (w <Lit_Chars cat>))
    (command.Subshell
      left:<Op_LParen "(">
      child:(command.ControlFlow
        keyword:<ControlFlow_Exit exit>
        arg_word:(w <Lit_Number 8>)
      )
      right:<Right_Subshell ")">
      is_last_cmd:F
    )
  ]
  ops:[<Op_Pipe "|"> <Op_Pipe "|">]
)
(command.Pipeline
  children:[
    (C (w <Lit_Chars sleep>) (w <Lit_Chars 0.07>))
    (C (w <Lit_Chars cat>))
    (command.Subshell
      left:<Op_LParen "(">
      child:(command.ControlFlow
        keyword:<ControlFlow_Exit exit>
        arg_word:(w <Lit_Number 7>)
      )
      right:<Right_Subshell ")">
      is_last_cmd:F
    )
  ]
  ops:[<Op_Pipe "|"> <Op_Pipe "|">]
)
('BEFORE', ['0', '1', '2', '3', '4'])
('AFTER', ['0', '1', '2', '3', '4'])
------------------------------------------------------------
ls | cut -d . -f 1 | head
[-1, -1, 0]
[-1, -1, -1, 0]
('FDS BEFORE', ['0', '1', '2', '3', '4'])
------------------------------------------------------------
date
----------------------------[??? no location ???] Can't execute 'does-not-exist': No such file or directory
..
----------------------------------------------------------------------
Ran 18 tests in 0.735s

OK
--------------------------------
does-not-exist
127
('FDS AFTER', ['0', '1', '2', '3', '4'])