Illegal character

From HandWiki

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]

Examples

Windows

In the Windows operating system, illegal characters in file and folder names include colons, brackets, question marks,[3] and null characters.[4]

Illegal characters in Windows file names[4]
Character Name
< less than
> greater than
: colon
" speech marks
/ forward slash
\ backslash
| pipe
? question mark
* asterisk

References