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MAC address validation
According to the IEEE 802 specification, a MAC address has 6 groups of 2 hexadecimal digits separated by "-" or ":". For example, 0a-1b-3c-4d-5e-6f is a valid MAC address. How to write a single regular expression to validate a MAC address described above? Here is the regular expression for MAC addre... 2017-05-15, 15699👍, 5💬

💬 2017-05-15 aditya: thank you very much. Its 100% working.

💬 2016-06-23 FYIcenter.com: Hi Taylan, The test page is back working now. Try it.

💬 2016-06-22 Taylan: The test page is not working...

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Capturing Sogou web spider entries from Apache Web log file
How to capture the Sogou web spider entries from Web log file? Here are some Web log file entries:127.0.0.1 - frank [10/May/2012:13:55:36 -0700] "GET /apache_pb.gif HTTP/1.0" 200 2326 "-" "Sogou web spider/4.0(+http://www.sogou.c om/docs/help/webmasters.htm#07 )""-" 213.135.131.79 - - [13/May/2012:17... 2013-02-04, 11665👍, 0💬

Validating GUID or UUID
How to write a regular expression to validate GUID (Globally Unique IDentifier) or UUID (Universally Unique IDentifier)? Here is a list of good and bad GUID examples:{D1A5279D-B27D-4CD4-A 05E-EFDD53D08E8D}{594ABD08-C02C-4827-8ABF-A1280 06848A3}{B59511BD6A5F4DF09ECF562A108D8 A2E}69593D62-71EA-4548-85... 2013-02-01, 11247👍, 0💬

JCB credit card number validation
All credit card numbers issued by JCB have 3 sets of numbers: JCB cards start with 2131 have 15 digits. JCB cards start with 1800 have 15 digits. JCB cards start with 35 have 16 digits. For example, 3566002020360505 is a valid Visa credit card number. How to write a single regular expression to vali... 2013-01-22, 9217👍, 0💬

Capturing MSN bot entries from Apache Web log file
How to capture the MSN (Microsoft Network) bot entries from Web log file? Here are some Web log file entries:127.0.0.1 - frank [10/May/2012:13:55:36 -0700] "GET /apache_pb.gif HTTP/1.0" 200 2326 "-" "Mozilla/5.0 (compatible; Yahoo! Slurp; http://help.yahoo.com/help/us/ ysearch/slurp)""-" 213.135.131... 2013-02-04, 8618👍, 0💬

Capturing Baidu spider entries from Apache Web log file
How to capture the Baidu spider entries from Web log file? Here are some Web log file entries:127.0.0.1 - frank [10/May/2012:13:55:36 -0700] "GET /apache_pb.gif HTTP/1.0" 200 2326 "-" "Mozilla/5.0 (compatible; Baiduspider/2.0; +http://www.baidu.com/search/s pider.html)""-" 213.135.131.79 - - [13/May... 2013-02-04, 6457👍, 0💬

Capturing Soso Spider entries from Apache Web log file
How to capture the Soso Spider entries from Web log file? Here are some Web log file entries:127.0.0.1 - frank [10/May/2012:13:55:36 -0700] "GET /apache_pb.gif HTTP/1.0" 200 2326 "-" "Sosospider+(+http://help.soso .com/webspider.htm)""-" 213.135.131.79 - - [13/May/2012:17:35:32 -0600] "POST /submit.... 2013-02-04, 6388👍, 0💬

Diners Club credit card number validation
All credit card numbers issued by Diners Club must start with 300 through 305, 36 or 38 and have 14 digits. For example, 38520000023237 is a valid Visa credit card number. How to write a single regular expression to validate a Diners Club credit card number described above? Here is the regular expre... 2013-01-22, 6024👍, 0💬

MasterCard credit card number validation
All credit card numbers issued by MasterCard must start with 51 through 55 and have 16 digits. For example, 5271190242643112 is a valid MasterCard credit card number. How to write a single regular expression to validate a MasterCard credit card number described above? Here is the regular expression ... 2013-01-22, 5926👍, 0💬

Email addresse basic validation
How to perform a basic validation on email address using a regular expression? For example, "test+email@fexample.com" is an invalid email address. To perform a basic validation on email addresses, try this regular expression: ^\D\w+(\.\w+)*[@]\w+(\.\w+)*\. [a-zA-Z]{2,4}$ 2013-01-27, 5364👍, 0💬

Capturing Yandex Bot entries from Apache Web log file
How to capture the Yandex Bot from Web log file? Here are some Web log file entries:127.0.0.1 - frank [10/May/2012:13:55:36 -0700] "GET /apache_pb.gif HTTP/1.0" 200 2326 "-" "Mozilla/5.0 (compatible; Yahoo! Slurp; http://help.yahoo.com/help/us/ ysearch/slurp)""-" 213.135.131.79 - - [13/May/2012:17:3... 2013-02-04, 4330👍, 0💬

Regular Expression (RegEx) Information Center
Are you having problems using regular expressions when processing text strings in your applications or when editing text files? Welcome to visit this information center, where you can enhance your knowledge on regular expressions; learn how to write and test regular expressions. regex.fyicenter.com ... 2016-07-06, 4300👍, 1💬

Capturing Ezooms bot entries from Apache Web log file
How to capture the Ezooms bot entries from Web log file? Here are some Web log file entries:127.0.0.1 - frank [10/May/2012:13:55:36 -0700] "GET /apache_pb.gif HTTP/1.0" 200 2326 "-" "Mozilla/5.0 (compatible; Plukkie/1.5; http://www.botje.com/plukkie.h tm)""-" 213.135.131.79 - - [13/May/2012:17:35:32... 2013-02-04, 4026👍, 0💬

Parsing key-value entries from Windows .INI files
How to write a regular expression to parse key-value entries from Windows .INI files? Here is an example Windows .INI file, system.ini:; for 16-bit app support [386Enh] woafont=dosapp.fon EGA80WOA.FON=EGA80WOA.FON EGA40WOA.FON=EGA40WOA.FON CGA80WOA.FON=CGA80WOA.FON CGA40WOA.FON=CGA40WOA.FON [drivers... 2013-02-01, 3835👍, 0💬

American Express credit card number validation
All credit card numbers issued by American Express must start with 34 or 37 and have 15 digits. For example, 346997719493686 is a valid American Express credit card number. How to write a single regular expression to validate a American Express credit card number described above? Here is the regular... 2013-01-22, 3833👍, 0💬

Capturing Google Bot entries from Apache Web log file
How to capture the Google Bot from Web log file? Here are some Web log file entries:127.0.0.1 - frank [10/May/2012:13:55:36 -0700] "GET /apache_pb.gif HTTP/1.0" 200 2326 "-" "Mozilla/5.0 (compatible; Yahoo! Slurp; http://help.yahoo.com/help/us/ ysearch/slurp)""-" 213.135.131.79 - - [13/May/2012:17:3... 2013-02-04, 3526👍, 0💬

Capturing Proximic Spider entries from Apache Web log file
How to capture the Proximic Spider entries from Web log file? Here are some Web log file entries:127.0.0.1 - frank [10/May/2012:13:55:36 -0700] "GET /apache_pb.gif HTTP/1.0" 200 2326 "-" "Mozilla/5.0 (compatible; proximic; +http://www.proximic.com/info/ spider.php)""-" 213.135.131.79 - - [13/May/201... 2013-02-04, 3506👍, 0💬

Capturing Jike Spider entries from Apache Web log file
How to capture the Jike Spider entries from Web log file? Here are some Web log file entries:127.0.0.1 - frank [10/May/2012:13:55:36 -0700] "GET /apache_pb.gif HTTP/1.0" 200 2326 "-" "Mozilla/5.0 (compatible; JikeSpider; +http://shoulu.jike.com/spider .html)""-" 213.135.131.79 - - [13/May/2012:17:35... 2013-02-04, 3400👍, 0💬

Capturing Bing bot entries from Apache Web log file
How to capture the Bing bot entries from Web log file? Here are some Web log file entries:127.0.0.1 - frank [10/May/2012:13:55:36 -0700] "GET /apache_pb.gif HTTP/1.0" 200 2326 "-" "Mozilla/5.0 (compatible; Yahoo! Slurp; http://help.yahoo.com/help/us/ ysearch/slurp)""-" 213.135.131.79 - - [13/May/201... 2013-02-04, 3192👍, 0💬

Parsing directory name and size from Windows "dir" command
How to write a regular expression to parse directory name and total file size from the output of Windows "dir" command? Here is an example output of the "dir" command:Directory of C:\Windows\system 07/13/2009 11:52 PM . 07/13/2009 11:52 PM .. 06/10/2009 04:21 PM 69,584 avicap.dll 06/10/2009 04:21 PM... 2013-02-01, 2919👍, 0💬

Visa credit card number validation
All credit card numbers issued by Visa must start with a 4 and have 13 or 16 digits. For example, 346997719493686 is a valid Visa credit card number. How to write a single regular expression to validate a Visa credit card number described above? Here is the regular expression for Visa credit card nu... 2013-01-22, 2870👍, 0💬

Detecting missing closing parenthesis in program code
How to detect missing closing parenthesis in program code using regular expression? For example, I have the following program code: n = - (LN(1-(B/m)*(r/q))/LN(1+(r/q)) ;Can anyone help? 2013-01-29, 2811👍, 0💬

Parsing file entries from Windows "dir" command
How to write a regular expression to parse file entries from the output of Windows "dir" command? Here is an example output of the "dir" command:Directory of C:\Windows\System32 01/30/2013 11:44 AM . 01/30/2013 11:44 AM .. 07/13/2009 11:56 PM 0409 01/16/2012 10:13 PM 1033 06/10/2009 04:16 PM 2,151 1... 2013-02-01, 2758👍, 0💬

RegexMagic: Regular Expression Generator
What is RegexMagic? RegexMagic makes creating regular expressions easier than ever. While other regex tools such as RegexBuddy merely make it easier to work with regular expressions, with RegexMagic you don't have to deal with the regular expression syntax at all. RegexMagic generates complete regul... 2013-02-01, 2642👍, 0💬

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