[dev] redirecting standard error to another terminal

From: Greg Reagle <list_AT_speedpost.net>
Date: Sat, 18 Jun 2022 09:03:27 -0400

OMG I wish I had known this YEARS ago. I can redirect the standard error of a program to a different terminal! I am using X11 and dwm and st on Debian. For example:

ls --foobar 2> /dev/pts/0

I am excited by the possibilities and mad at myself for not having thought of doing this before.

When I am debugging a terminal program that use the whole screen (like a text editor running ncurses) it doesn't really work to have stderr information mixed in with the TUI. Problem solved! I can print debugging information to stderr. Or it would help with debugging something like dvtm.

Now that I think about it, redirecting stderr to a log file and looking at the log file with tail -f in another terminal would also achieve similar goal, I guess.
Received on Sat Jun 18 2022 - 15:03:27 CEST

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