What is the function of echo -e in Linux?

In Linux, the echo -e command is used to output a string and can interpret special characters within the string. The -e option instructs the echo command to interpret special characters and convert them into corresponding control characters.

特殊字符包括：

1. \n: newline character
2. Tabulation character
3. \b: backspace symbol
4. \r: carriage return
5. Backslash
6. Single quotation mark
7. quotation marks

When using the echo -e command, you can include special characters in the string, such as:

echo -e "Hello\nWorld"

Output:

Hello
World

Special characters will be treated as regular characters if the -e option is not used.

echo "Hello\nWorld"

Output:

Hello\nWorld