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PowerShell accepts strings, both raw and escaped. A string enclosed between single quotation marks is a raw string while a string enclosed between double quotation marks is an escaped string. PowerShell treats straight and curly quotes as equivalent. [57] The following list of special characters is supported by PowerShell: [58]
The backslash (\) escape character typically provides two ways to include double-quotes inside a string literal, either by modifying the meaning of the double-quote character embedded in the string (\" becomes "), or by modifying the meaning of a sequence of characters including the hexadecimal value of a double-quote character (\x22 becomes ").
Double quotes may also be used, but this is subject to confusion, because expansion does occur in a double-quoted string, but does not occur in a here document with double-quoted delimiter. [4] Single- and double-quoted delimiters are distinguished in some other languages, notably Perl (see below), where behavior parallels the corresponding ...
Non-interpolated strings may also escape sequences, in which case they are termed a raw string, though in other cases this is separate, yielding three classes of raw string, non-interpolated (but escaped) string, interpolated (and escaped) string. For example, in Unix shells, single-quoted strings are raw, while double-quoted strings are ...
TeX: The backtick character represents curly opening quotes. For example, ` is rendered as single opening curly quote (‘) and `` is a double curly opening quote (“). It also supplies the numeric ASCII value of an ASCII character wherever a number is expected.
Full path of the matching item, double quoted, including drive letter, and file extension (if any). @relpath Path of the matching item, double quoted, and relative to the starting directory (given by /P). Each path begins with a dot and backslash (.\). @isdir Evaluates to the literal string TRUE if the matching item is a directory, or FALSE if ...
One of the oldest examples is in shell scripts, where single quotes indicate a raw string or "literal string", while double quotes have escape sequences and variable interpolation. For example, in Python , raw strings are preceded by an r or R – compare 'C:\\Windows' with r'C:\Windows' (though, a Python raw string cannot end in an odd number ...
A metacharacter is a character that has a special meaning to a computer program, such as a shell interpreter or a regular expression (regex) engine.. In POSIX extended regular expressions, there are 14 metacharacters that must be escaped — preceded by a backslash (\) — in order to drop their special meaning and be treated literally inside an expression: opening and closing square brackets ...