In computer science, an illegal character is a character that is not allowed by a certain programming language, protocol, or program.[1] To avoid illegal characters, some languages may use an escape character which is a backslash followed by another character.[2]
In the Windows operating system, illegal characters in file and folder names include colons, brackets, question marks,[3] and null characters.[4]
| < | less than |
| > | greater than |
| colon | |
| " | speech marks |
| / | forward slash |
| \ | backslash |
||pipe|-|?|question mark|-|*|asterisk|}References] |