display new lines bash code example

Example 1: echo with new lines bash

# Using echo
echo -e "Line 1\nLine 2"
echo "Line 1 $HOME expanded
Line 2"
echo 'Line 1 $HOME not expanded
Line 2'

# Similar result, using cat
cat <<EOF
Line 1 $HOME expanded
Line 2
EOF
cat <<'EOF'
Line 1 $HOME not expanded
Line 2
EOF

Example 2: count new lines bash

command | wc -l  
wc -l < some_file.txt