Echo newline in Bash prints literal \n

Make sure you are in Bash.

$ echo $0
bash

All these four ways work for me:

echo -e "Hello\nworld"
echo -e 'Hello\nworld'
echo Hello$'\n'world
echo Hello ; echo world

Use printf instead:

printf "hello\nworld\n"

printf behaves more consistently across different environments than echo.

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