Regex Tutorial Video

Regular ExpressionsHere is a Regex Tutorial Video that will get you Regular Expression Matching like a pro. You can think of this as a Regular Expression Reference that you can come back to whenever you need to brush up.

I cover all of the codes used in Regex and give ever more complex examples until you understand.

This is just Regex Tutorial video 1 in a long series of video’s. I’ll specifically cover how to use Regular Expressions in Python, in the next video. And, if you prefer reading this information, refer to this article Regular Expressions.

Note: Click the HD and Full Screen buttons, in the video, for the best view

Leave any questions or comments below.

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18 Responses to “Regex Tutorial Video”

  1. Dan says:

    Great introduction to Regular Expressions, I finally have clue. Thanks!

  2. Jose says:

    really good intro to reg expressions!! thank you.

  3. Nadjat says:

    hello again!! please, could you give me the link to see the video, I am lost. thank you so much.

    • Derek Banas says:

      I’m not sure what video you are looking for? I have a ton of regex tutorials. Search for regex and regular expressions on my site to find them. I use them in every language tutorial

  4. Harry says:

    Thanks very much for the RegEx tutorials. You have a clear, focused teaching style which I appreciate.

  5. ev says:

    I want to find a regular expression to match the following pattern

    The pattern is
    “2,56,78,90”

    help me find the regex for the pattern

    Thank you

    • Derek Banas says:

      I’m sorry but I don’t know what I’m looking for. You have to be pretty specific with a regex. Are you looking for 4 digits separated by commas, or 1 digit followed by 3 double digit numbers? See it is a bit confusing.

      • ev says:

        I really want to match a pattern of a the type ‘1,2,3,……..,n’ where n can be any digit

        please help me find a regex for this infintie number pattern

        • Derek Banas says:

          I think this is what you’re looking for (\d+)[\s,]+(\d+)

          • ev says:

            >>> import re
            >>> pat = re.compile(‘(\d[\s,]+(\d+)’)
            >>> s = ‘1,2,3,4,5’
            >>> g = re.match(pat,s)
            >>> g.group()
            ‘1,2’

            this is the output I’am getting but I need the following output when I execute g.group()that is

            >>>g.group()
            >>>’1,2,3,4,5′

            please help me find the regex for the above output form for any number of numerals in the sequence

  6. ev says:

    I want to get the pattern by using the group you taught

    I want to repeat the the regex n times to match the string

    the regex for single match in the pattern is

    pattern = re.compile(‘(\d+,)’)

    I must match the pattern for “1,2,3, ……………..,100”

    please help me

  7. Sesh says:

    Hi Derek Banas,

    Very good and easy Understanding video on Regular Expressions. I am a bit worried to learn as it looks very confusing but your demonstration made me understand it easily.

    “Thank You”

    *Can I have the PDF Version which will be more helpful for my future references.

    • Derek Banas says:

      I’m very happy that i could help. Sorry, but I don’t have a PDF version. Feel free to copy anything you need from my site. I have a few other Regex tutorials that may help as well.

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