Dear all, I would like to make something like Base.redirect_stdio , but which copies elsewhere the stdout and stderr without suppressing them, like the tee command. Would you know how to do this ? Thanks a lot,

[image] hadrien.theveneau: tee command. Please check this similar thread and this .

Many thanks, but I have this error (private file names redacted): ERROR: LoadError: MethodError: no method matching (::Base.RedirectStdStream)(::Tee{Tuple{Base.TTY, Base.TTY}}) The function Base.RedirectStdStream(2, true) exists, but no method is defined for this combination of argument types. C…

Update: it seems the redirect_stdio function does not work with more complex structures than fd integers: struct RedirectStdStream <: Function unix_fd::Int writable::Bool end for (f, writable, unix_fd) in ((:redirect_stdin, false, 0), (:redirect_stdout, true, 1), (…

EDIT: I eventually found a workaround.

We are very happy for you, and it is likely that the Julia community would be even happier if you were to share the workaround with them.

The workaround is rather specific to our needs and code, not sure of general applicability. Anyway, here is a minimal working example made by stripping project specific parts: #!/usr/bin/env -S julia -t auto using Logging logging_io = Base.BufferStream() global_logger(Base.SimpleLogger(logging_io…

Stdio tee (copy without redirection)

General Usage

rafael.guerra December 29, 2025, 3:54pm 2

Please check this similar thread and this.

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Stdio tee (copy without redirection)

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