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In Unix shell scripting and in utilities such as Makefiles, the "$" is a unary operator that translates the name of a variable into its contents. While this may seem similar to a sigil, it is properly a unary operator for lexical indirection , similar to the * dereference operator for pointers in C , as noticeable from the fact that the dollar ...
Typographical symbols and punctuation marks are marks and symbols used in typography with a variety of purposes such as to help with legibility and accessibility, or to identify special cases. This list gives those most commonly encountered with Latin script. For a far more comprehensive list of symbols and signs, see List of Unicode characters.
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 ...
The dollar sign, also known as the peso sign, is a currency symbol consisting of a capital S crossed with one or two vertical strokes ($ or depending on typeface), used to indicate the unit of various currencies around the world, including most currencies denominated "dollar" or "peso".
A currency symbol or currency sign is a graphic symbol used to denote a currency unit. Usually it is defined by a monetary authority, such as the national central bank for the currency concerned. A symbol may be positioned in various ways, according to national convention: before, between or after the numeric amounts: €2.50, 2,50€ and 2 50.
Also Russian and Belarusian currencies in Latin script R$ real Brazilian real: The $ is sometimes written with a double bar like a double-barred dollar sign: ﷼ IR Rl ⁄ Rls: rial Iranian rial: Rl is singular and Rls is plural U+FDFC ﷼ RIAL SIGN.ر.ي YRl ⁄ YRls Rl ⁄ Rls: rial Yemeni rial: Rl is singular and Rls is plural .ر.س SR SRl ...
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Editing a FreeBSD shell script for configuring ipfirewall. A shell script is a computer program designed to be run by a Unix shell, a command-line interpreter. [1] The various dialects of shell scripts are considered to be command languages. Typical operations performed by shell scripts include file manipulation, program execution, and printing ...