Bash Escape Character
The escape character is the backslash \. It makes the character right after it plain text, so \$ prints a dollar sign instead of reading a variable.
With echo -e, a backslash also starts special sequences like \n for a new line and \t for a tab.
Print special characters
echo "The file costs \$5"
The file costs $5
echo "She said \"Hi\""
She said "Hi"
echo It\'s fine
It's fineNew lines and tabs with echo -e
echo -e "Name:\tAlice\nAge:\t30"
Name: Alice
Age: 30
