Perl search string：how to search for a string in a particular file?
how to search for a string in a particular file?
2012年5月29日—Readthedatafromthefileintoastringvariable;Searchinthevariablefortheparticularstring.Dependingonthesizeofthefile,andof ...。其他文章還包含有：「perlrequick」、「perl」、「searchaspecificsubstringpatterninastringusingperl」、「Perl」、「精簡扼要的Perl課程講義（六）：常規表達式（Regular...」、「PERL」、「Perl(Scripting)」、「Perlsubstring」、「PerlTextPatternsforSearchandReplace」
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perlrequick
https://perldoc.perl.org
This page covers the very basics of understanding, creating and using regular expressions ('regexes') in Perl.
perl
https://stackoverflow.com
To find out if a string contains substring you can use the index function: if (index($str, $substr) != -1) print $str contains $substr-n; }
search a specific sub string pattern in a string using perl
https://stackoverflow.com
The index function searches for one string within another, but without the wildcard-like behavior of a full regular-expression pattern match.
Perl
https://www.geeksforgeeks.org
Regular Expression (Regex or Regexp or RE) in Perl is a special text string for describing a search pattern within a given text.
精簡扼要的Perl 課程講義（六）：常規表達式（Regular ...
https://blog.gtwang.org
常規表達式（一）. # 常規表達式(一) (Regular expression) # (1) 基本樣式比對=~ 與!~ # 比對字串，成功傳回true # 失敗傳回false Hello World ...
PERL
http://www.cs.cmu.edu
Searches a string for a pattern match, and returns true (1) or false (''). If no string is specified via the =~ or !~ operator, the $_ string is searched.
Perl (Scripting)
https://www.freekb.net
The built in Perl operator =~ is used to determine if a string contains a string, like this. if (foo =~ /f/) print 'foo' contains the letter 'f' -n; }
Perl substring
https://alvinalexander.com
The Perl index function works by starting at the beginning of the string, and searching until it gets to the end of the string.
Perl Text Patterns for Search and Replace
https://www.regular-expression
In Perl, you can use the m// operator to test if a regex can match a string, e.g.: if ($string =~ m/regex/) print 'match'; } else print 'no match'; }.