/Shell/Bash/Pipe multi-line string into file

Pipe multi-line string into file

# possibility 1:
echo "line 1" | sudo tee -a greetings.txt > /dev/null

# possibility 3:
sudo tee -a greetings.txt > /dev/null <<EOT
line 1
line 2
EOT

Source: unix.stackexchange.com

Pipe multi-line string into file

# possibility 1:
echo "line 1" >> greetings.txt
echo "line 2" >> greetings.txt

# possibility 2:
echo "line 1
line 2" >> greetings.txt

# possibility 3:
cat <<EOT >> greetings.txt
line 1
line 2
EOT

Source: unix.stackexchange.com

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