Similar to $, the shortcut \z matches the end of a string, not a line : grep « String « Ruby

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Ruby » String » grep   Similar to $, the shortcut \z matches the end of a string, not a line opening = "This is a test. This is a test. \nThis is a test. This is a test. ,\n" opening.grep(/this is,\z/)   Related examples in the same category 1.  Regular Expressions 2.  match the first line just by using a word in the pattern 3.  a pair of square brackets ([]) matches any character in the brackets 4.  match alternate forms of a pattern using the pipe character (|) 5.  Grouping uses parentheses to group a subexpression, like this one that contains an alternation 6.  Anchors anchor a pattern to the beginning (^) or end ($) of a line 7.  \d represents a digit; it is the same as using [0-9]. 8.  Find out the phone number 9.  ? is a repetition operator 10.  The plus sign (+) operator indicates one or more of the previous pattern 11.  Braces ({}) specifies the exact number of digits, such as \d{3} or \d{4}

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