bash - In Linux, how to redirect wall output in script to file? -


i'm trying log events in bash script following lines:

#!/bin/bash { ... echo "photo backup finished on $(date)" | wall ... } &>> "/var/log/$(basename "$0").log" &

however, in log file, corresponding line instead appears as:

wall: cannot tty name: inappropriate ioctl device

it seems wall outputs can't directed file.

how can work? (be able post wall , log message file)

one possibility use "tee -a" instead of ">>". example:

echo "hello world"|tee -a myfile.log|wall


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