What is UTF in Linux?

With the UTF-8 encoding, Unicode can be used in a convenient and backwards compatible way in environments that were designed entirely around ASCII, like Unix. UTF-8 is the way in which Unicode is used under Unix, Linux, and similar systems.

What is the relationship between ASCII and Unicode?

ASCII has its equivalent in Unicode. The difference between ASCII and Unicode is that ASCII represents lowercase letters (a-z), uppercase letters (A-Z), digits (0–9) and symbols such as punctuation marks while Unicode represents letters of English, Arabic, Greek etc.

Is the ISO 8859-1 charset UTF-8 compatible?

All the ISO 8859-1 (ISO Latin 1) characters below codes 7f hex are ASCII compatible and UTF-8 compatible in one byte. The ligatures and characters with diacritics use multi-byte Unicode UTF-8 representations, and use Unicode compatibility codepoints. All UTF-8 single-byte character are contained in ASCII.

What does you + FFFD stand for in ISO 8859-1?

When reading an ISO-8859-1 encoded content as UTF-8, you will often see �, the replacement character ( U+FFFD) for an unknown, unrecognized or unrepresentable character. Different text editors and IDEs have support for encoding: both for the display encoding, and changing the file encoding itself.

Can a Unicode string be converted to UTF-8?

Encoding the Unicode as UTF-8 is a straightforward exercise. It would not be difficult to parse that table directly and form a lookup table from it at compile time. ISO-8859-1 to UTF-8 involves nothing more than the encoding algorithm because ISO-8859-1 is a subset of Unicode.

Where is ISO 8859-1 used in the world?

This character-encoding scheme is used throughout the Americas, Western Europe, Oceania, and much of Africa. It is also commonly used in most standard romanizations of East-Asian languages. It is the basis for most popular 8-bit character sets and the first block of characters in Unicode.