Traceback (most recent call last):
  File "tests/read_from_fd.py", line 20, in <module>
    main(sys.argv)
  File "tests/read_from_fd.py", line 15, in main
    in_str = os.read(fd, 1024)
OSError: [Errno 9] Bad file descriptor

0: fd3

Traceback (most recent call last):
  File "tests/read_from_fd.py", line 20, in <module>
    main(sys.argv)
  File "tests/read_from_fd.py", line 15, in main
    in_str = os.read(fd, 1024)
OSError: [Errno 9] Bad file descriptor

0: 

Traceback (most recent call last):
  File "tests/read_from_fd.py", line 20, in <module>
    main(sys.argv)
  File "tests/read_from_fd.py", line 15, in main
    in_str = os.read(fd, 1024)
OSError: [Errno 9] Bad file descriptor
Traceback (most recent call last):
  File "tests/read_from_fd.py", line 20, in <module>
    main(sys.argv)
  File "tests/read_from_fd.py", line 15, in main
    in_str = os.read(fd, 1024)
OSError: [Errno 9] Bad file descriptor

0: 

Traceback (most recent call last):
  File "tests/read_from_fd.py", line 20, in <module>
    main(sys.argv)
  File "tests/read_from_fd.py", line 15, in main
    in_str = os.read(fd, 1024)
OSError: [Errno 9] Bad file descriptor
Traceback (most recent call last):
  File "tests/read_from_fd.py", line 20, in <module>
    main(sys.argv)
  File "tests/read_from_fd.py", line 15, in main
    in_str = os.read(fd, 1024)
OSError: [Errno 9] Bad file descriptor

<core.base.ParseError object at 0x7f78af49b198>
Line 1 of '<stdin>'
  cat <<${a}
        ^~
---
<core.base.ParseError object at 0x7f78af488fd0>
Line 0 of '<unknown>'
  <token had no position info>
NO COL
---

Error evaluating here doc delimiter: (CompoundWord parts:[(BracedVarSub token:(token id:VSub_Name val:a span_id:4) spids:[35])])
Error parsing AndOr in ParseCommandTerm

here

/bin/mksh: <stdin>[1]: syntax error: '(' unexpected

<core.base.ParseError object at 0x7fecfbf18198>
Line 1 of '<stdin>'
  cat <<$(a)
        ^~
---
<core.base.ParseError object at 0x7fecfbf02fd0>
Line 0 of '<unknown>'
  <token had no position info>
NO COL
---

Error evaluating here doc delimiter: (CompoundWord
  parts: [
    (CommandSubPart
      command_list: 
        (SimpleCommand
          words: [(CompoundWord parts:[(LiteralPart token:(token id:Lit_Chars val:a span_id:4))])]
        )
      spids: [3 5]
    )
  ]
)
Error parsing AndOr in ParseCommandTerm

Traceback (most recent call last):
  File "bin/osh", line 378, in <module>
    sys.exit(main(sys.argv))
  File "bin/osh", line 368, in main
    return OshMain(main_argv)
  File "bin/osh", line 327, in OshMain
    status, cflow = ex.Execute(node)
  File "/home/andy/git/oil/bin/../core/cmd_exec.py", line 758, in Execute
    status, cflow = self.Execute(child)  # last status wins
  File "/home/andy/git/oil/bin/../core/cmd_exec.py", line 697, in Execute
    self.fd_state.RestoreAll()
  File "/home/andy/git/oil/bin/../core/process.py", line 73, in RestoreAll
    os.close(fd)
OSError: [Errno 9] Bad file descriptor

/bin/mksh: <stdin>[5]: cat: 1: No such file or directory
/bin/mksh: <stdin>[6]: syntax error: '|' unexpected

Traceback (most recent call last):
  File "bin/osh", line 378, in <module>
    sys.exit(main(sys.argv))
  File "bin/osh", line 368, in main
    return OshMain(main_argv)
  File "bin/osh", line 327, in OshMain
    status, cflow = ex.Execute(node)
  File "/home/andy/git/oil/bin/../core/cmd_exec.py", line 758, in Execute
    status, cflow = self.Execute(child)  # last status wins
  File "/home/andy/git/oil/bin/../core/cmd_exec.py", line 663, in Execute
    raise AssertionError('Error evaluating words: %s' % err)
AssertionError: Error evaluating words: ['Undefined variable v2', 'Error evaluating word part (SimpleVarSub token:(token id:VSub_Name val:"$v2" span_id:16))', 'Error evaluating word (CompoundWord\n  parts: [\n    (LiteralPart token:(token id:Lit_Other val:"=" span_id:15))\n    (SimpleVarSub token:(token id:VSub_Name val:"$v2" span_id:16))\n    (LiteralPart token:(token id:Lit_Other val:"=" span_id:17))\n  ]\n)']

==

before
after

127

/bin/dash: 1: [[: not found