A metacharacter is a character that has a special meaning in a regular expression. For example, the metacharacter "." matches any character, so the regular expression ".+" would match any string of characters.
What metacharacter means? The term "metacharacter" refers to a character that has a special meaning in a particular context. In general, a metacharacter is any character that is not a standard alphanumeric or whitespace character. For example, the characters "*" and "?" are common metacharacters that are used in wildcard searches.
What is a metacharacter in Linux?
The term "metacharacter" in Linux refers to a character that has a special meaning to the shell. Common examples of metacharacters include the asterisk (*), which represents any number of characters; the question mark (?), which represents any single character; and the backslash (), which is used to escape the meaning of the character that follows it.
Metacharacters can be used to create powerfulcommand line shortcuts, known as "shell wildcards". For example, the command "ls *" will list all files in the current directory, while the command "ls ??" will list all files in the current directory that have two characters in their name.
What is a metacharacter Python?
A metacharacter is a character that has a special meaning in a particular context. In Python, a metacharacter is any character that is not a letter, number, or underscore.
Some examples of metacharacters in Python include:
+, -, *, /, %, //
&, |, ^, ~
, =, ==, !=
(, ), [, ], {, }
., :, ;, ...
@, $, *
Metacharacters can be used for a variety of purposes, such as specifying the order of operations in an expression or defining a character class in a regular expression. What does the metacharacter d means in regular expression? The metacharacter d stands for "digit" in regular expressions. It matches any single digit from 0 to 9. Which metacharacter matches any single character? The metacharacter that matches any single character is the period (.).