Best way to learn regular expressions

What is the best way to learn regular expressions?
Should I use any software?
Thank you.
skiaboxAsked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

x
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

initdotdanCommented:
Use any *nix box. Use vi on your *nix box. You can study up on advanced file processing on vi.
0
skiaboxAuthor Commented:
I have a macbook pro , so I can use the bash shell.
0
käµfm³d 👽Commented:
Practice, practice, practice!   = )

In all seriousness, I started participating here in the regex TA, and most of my knowledge in regex has come from helping others solve their regex quandaries. This gave me many opportunities to practice regex.

You have to be mindful, though, that different languages and different text editors don't always implement the same regex engines or even use the same regex syntax. Just because you understand regex in one language, the text editor you use may use an entirely different syntax. Generally speaking, the theory behind regex is universal. Although different languages/editors may implement different engines, a regex is more or less a state machine. You don't really need to understand all of the gory details of a state machine in order to understand regex, but at times it may help you to understand why a regex is performing a certain behavior.
0
Determine the Perfect Price for Your IT Services

Do you wonder if your IT business is truly profitable or if you should raise your prices? Learn how to calculate your overhead burden with our free interactive tool and use it to determine the right price for your IT services. Download your free eBook now!

käµfm³d 👽Commented:
P.S.

I highly recommend the following site for a regex library. It really breaks it down for you what each construct means in regex, and even goes so far as to telly which constructs are supported in which languages.

www.regular-expressions.info
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
HonorGodSoftware EngineerCommented:
And this is "the" book:

Mastering Regular Expressions: http://www.amazon.com/dp/0596528124
0
skiaboxAuthor Commented:
Thank you so much guys!
0
HonorGodSoftware EngineerCommented:
Thanks for the assist, and the points.
Good luck & have a great day.
0
initdotdanCommented:
You can use the Terminal and vi on your Macbook pro.
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Programming

From novice to tech pro — start learning today.