Many thanks to Michael for finding the change in sudo behaviour!
For historical accuracy:
On 25/09/2023 20:24, Greg Wooledge wrote:
On Mon, Sep 25, 2023 at 01:35:38PM +0900, John Crawley wrote:
4) In a bash shell as root (e.g. "su" or "sudo -s"), do:
errors=$(apt-get install mirage 2>&1 1>/dev/tty)
-bash: syntax error near unexpected token `2'
So bash as root has a problem with the redirection.
At this point I'm guessing you made a typo. Since you didn't show us
the command you typed, that's my official guess. Any alternative is
too far beyond belief.
It must have been a typo.
I should have copy-pasted the command, which was at that point possible, but
anyway that syntax error no longer appears.
But this worked OK in the same root shell:
exec 3>1
errors=$( apt-get install mirage 2>&1 1>&3 )
exec 3>&-
If 'mirage' is replaced with 'mirag' then $errors holds the error message.
So at least something is working!
Note your typo in the first exec command. You've got FD 3 redirected
to a file named '1', rather than dup-ing stdout.
Oops, sorry. With corrected commands it still works, even with default
"use_pty" in sudoers.
So running in a root shell, the new setting does not interfere. Clearly sudo
only.
--
John
