mjhjmtu

I'm trying to write the output (error or success) to a file. With other commands I can do this without issue however the below commands will only write to the terminal but not to a file. If I run directly in the terminal I can see the output on the screen and the file's will be created but will be empty.

The commands are

sudo ip r add default via 192.168.1.254 > outfile.txt >&1
sudo ip r add default via 192.168.1.254 | tee -a outfile.txt
sudo /sbin/route add default gw 192.168.1.254 | sudo tee -a outfile.txt

These are going in a boot script (headless setup). I'm not able to simulate the boot conditions from within the terminal directly so just running them directly doesn't necessarily give me the output that happens in boot conditions meaning I can't work out why/whats causing them to fail.

The output when I run directly in the terminal is
RTNETLINK answers: Network is unreachable for sudo ip r add default via 192.168.1.254
and SIOCADDRT: Network is unreachable for sudo route add default gw 192.168.1.254which is expected in those conditions

For bash

ip r add default via 192.168.1.254 &> outfile.txt

or the standard form for other shells:

ip r add default via 192.168.1.254 >outfile.txt 2>&1

from man bash:

 Redirecting Standard Output and Standard Error
 This construct allows both the standard output (file descriptor 1) and
 the standard error output (file descriptor 2) to be redirected to the
 file whose name is the expansion of word.

 There are two formats for redirecting standard output and standard er‐
 ror:

 &>word
 and
 >&word

 Of the two forms, the first is preferred. This is semantically equiva‐
 lent to

 >word 2>&1