Bash write output in terminal and file

Question

I am creating a script and need the outputs to be shown in the terminal, but also saved in a file

#!/bin/bash
echo "Olá Mundo"

and I am redirecting the output to the file as follows

./teste.sh > saida.txt

so the string Ola mundo is correctly saved in the file.

How do I make that in addition to the file it is also printed on the screen at the same time?

Answer 1

From what I understand your question, you could do it through command tee that does what is in the image below, obtained from this website:

Passes command and it saves in the file and plays on stdout, so the code would be:

echo "Olá Mundo" | tee saida.txt