I want to output the command result as standard, and also output it to a file Commands that can be used when you want to
echo "Can be displayed in either" | tee test1.txt
The one that saves the standard output error and uses it when displayed on the screen
ping host8888 2>&1 | tee pinglog.txt
ping: unknown host host8888
cat pinglog.txt
ping: unknown host host1234
If you add -a, you can add it without overwriting.
tee [option]file name
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