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  2. Naming convention (programming) - Wikipedia

    en.wikipedia.org/wiki/Naming_convention...

    The two characters commonly used for this purpose are the hyphen ("-") and the underscore ("_"); e.g., the two-word name "two words" would be represented as "two-words" or "two_words". The hyphen is used by nearly all programmers writing COBOL (1959), Forth (1970), and Lisp (1958); it is also common in Unix for commands and packages, and is ...

  3. Snake case - Wikipedia

    en.wikipedia.org/wiki/Snake_case

    Snake case (sometimes stylized autologically as snake_case) is the naming convention in which each space is replaced with an underscore (_) character, and words are written in lowercase. It is a commonly used naming convention in computing, for example for variable and subroutine names, and for filenames.

  4. Underscore - Wikipedia

    en.wikipedia.org/wiki/Underscore

    An underscore or underline is a line drawn under a segment of text. ... such as in computer filenames, ... such as hyphens and dashes, ...

  5. Filename - Wikipedia

    en.wikipedia.org/wiki/Filename

    Screenshot of a Windows command shell showing filenames in a directory Filename list, with long filenames containing comma and space characters as they appear in a software display. A filename or file name is a name used to uniquely identify a computer file in a file system. Different file systems impose different restrictions on filename lengths.

  6. List of typographical symbols and punctuation marks - Wikipedia

    en.wikipedia.org/wiki/List_of_typographical...

    Hyphen: Dash, Hyphen-minus-Hyphen-minus: Dash, Hyphen, Minus sign ☞ Index: Manicule, Obelus (medieval usage) · Interpunct: Full-stop, Period, Decimal separator, Dot operator ‽ Interrobang (combined 'Question mark' and 'Exclamation mark') Inverted question and exclamation marks ¡ Inverted exclamation mark: Exclamation mark, Interrobang ...

  7. Wikipedia : Naming conventions (technical restrictions)

    en.wikipedia.org/wiki/Wikipedia:Naming...

    Leading and trailing spaces/underscores are stripped, consecutive spaces/underscores are reduced to a single one, and page names consisting of only spaces and underscores are not allowed at all. Titles affected by this behavior can generally be made to display correctly using the DISPLAYTITLE magic word.

  8. List of file signatures - Wikipedia

    en.wikipedia.org/wiki/List_of_file_signatures

    File can be decompressed using Extract.exe or Expand.exe distributed with earlier versions of Windows. After compression, the last character of the original filename extension is replaced with an underscore, e.g. ‘Setup.exe’ becomes ‘Setup.ex_’. 46 4C 49 46: FLIF: 0 flif Free Lossless Image Format: 1A 45 DF A3 ␚Eߣ 0 mkv mka mks ...

  9. Hostname - Wikipedia

    en.wikipedia.org/wiki/Hostname

    Notwithstanding the standard, Chrome, Firefox, Internet Explorer, Edge, and Safari allow underscores in hostnames, although cookies in IE do not work correctly if any part of the hostname contains an underscore character. [11] However, it is valid to attempt to resolve a hostname that consists of an underscore. E.g. _.example.com.