echo to stderr and tee to log file?

Question

In bash script,

echo \"error\" 1>&2 | tee -a log

will print stderr in screen but no log to file, how to do these at same tim

Answer 1

But default only stdout is passed along in pipes, so that in

$ echo "error" | tee 

tee only sees the stout from the echo, not the stderr. stderr will still be displayed in the terminal.