![]() ![]() If a ewline pair appears, and the backslash itself is not quoted, the ewline is treated as a line continuation (that is, it is removed from the input stream and. It preserves the literal value of the next character that follows, with the exception of newline. I’ve tried doubling up the double quotes, just in case, but that didn’t work. A non-quoted backslash \ is the Bash escape character. This is the command: - command: 'curl -s "" -H "Authorization: Bearer ”Īnd these are two lots of single quotes ‘‘sensor.tado_auth’’, ‘‘access_token’’Īnd there is a single quote at the beginning and end. This is useful primarily for preprocessor definitions longer than a single line.I’m trying to send a curl command via command line sensor, but it’s dropping the double quotes " around the URL and Authorization. In this effort, you need to exit the single-quoted string in a temporary manner, put a backslash (\), and then reopen the single-quoted string. There is no quoting within single quotes, so you can't put a single quote inside a single-quoted string. When a newline character (equivalent to pressing the RETURN key) immediately follows the backslash, the compiler ignores the backslash and the newline character and treats the next line as part of the previous line. There is no direct way to escape the single quotes (‘) whenever you want to encase them in a single-quoted string. In a nutshell, everything between single quotes ('') is interpreted literally (and in particular the first ' marks the end of the literal string), whereas and retain their special meaning between ''. You can also use the backslash ( \) as a continuation character. For instance, the vertical tab and form feed escape sequences ( \v and \f) do not affect screen output, but they do perform appropriate printer operations. Some escape sequences are device-specific. For example, the ESC character ( \033) is often used as the first character of a control command for a terminal or printer. Hence, if we will put the same string within single quotes, most of the. Some strings have a lot of special characters so it is hard to use a backslash before every special character. A double quote can be quoted within double quotes by preceding it with a backslash. Backslashes preceding characters without a special meaning are left unmodified. Within double quotes, backslashes that are followed by one of these characters are removed. All special characters within the single quotes lose their special meanings. The backslash preceding the is not removed. For example, \c is treated as a c.Įscape sequences allow you to send nongraphic control characters to a display device. A single quote may not occur between single quotes, even when preceded by a backslash. If a backslash precedes a character that does not appear in the table, the compiler handles the undefined character as the character itself. Unicode character in hexadecimal notation if this escape sequence is used in a wide-character constant or a Unicode string literal.įor example, WCHAR f = L'\x4e00' or WCHAR b = L"The Chinese character for one is \x4e00". Note that the question mark preceded by a backslash ( \?) specifies a literal question mark in cases where the character sequence would be misinterpreted as a trigraph. The following table lists the ANSI escape sequences and what they represent. They are also used to provide literal representations of nonprinting characters and characters that usually have special meanings, such as the double quotation mark ( "). An escape sequence is regarded as a single character and is therefore valid as a character constant.Įscape sequences are typically used to specify actions such as carriage returns and tab movements on terminals and printers. Character combinations consisting of a backslash ( \) followed by a letter or by a combination of digits are called "escape sequences." To represent a newline character, single quotation mark, or certain other characters in a character constant, you must use escape sequences. ![]()
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