Schedule

Schedule

Tuesday, April 21

1429635600 Tech News Today
1429639200 MacBreak Weekly
1429648200 Security Now
1429657200 Tech News 2Night
1429660800 All About Android

Wednesday, April 22

1429716600 FLOSS Weekly
1429722000 Tech News Today
1429725600 Windows Weekly
1429732800 This Week in Google
1429743600 Tech News 2Night
1429745400 Android App Arena
1429750800 Ham Nation

Thursday, April 23

1429808400 Tech News Today
1429812000 Know How...
1429817400 Marketing Mavericks
1429822800 Home Theater Geeks
1429830000 Tech News 2Night
1429831800 The Giz Wiz

Friday, April 24

1429894800 Tech News Today
1429898400 This Week in Law
1429909200 Before You Buy
1429916400 Tech News 2Night

Saturday, April 25

1429984800 The Tech Guy

Sunday, April 26

1430071200 The Tech Guy
1430085600 This Week in Tech

Monday, April 27

1430154000 Tech News Today
1430157600 Triangulation
1430163000 iPad Today
1430170200 Coding 101
1430175600 Tech News 2Night

Tuesday, April 28

1430240400 Tech News Today
1430244000 MacBreak Weekly
1430253000 Security Now
1430262000 Tech News 2Night
1430265600 All About Android

Wednesday, April 29

1430321400 FLOSS Weekly
1430326800 Tech News Today
1430330400 Windows Weekly
1430337600 This Week in Google
1430348400 Tech News 2Night
1430350200 Android App Arena
1430355600 Ham Nation

Thursday, April 30

1430413200 Tech News Today
1430416800 Know How...
1430422200 Marketing Mavericks
1430427600 Home Theater Geeks
1430434800 Tech News 2Night
1430436600 The Giz Wiz

Most Recent Episodes

iPad Today

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Coding 101

Flash, Objective-C and Swift!

Tech News 2Night

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Triangulation

A documentary which exposes the dearth of American female and minority software engineers.

Tech News Today

Google is changing its search algorithm to favor mobile friendly sites.

This Week in Tech

This Week in Tech Turns 10!

The Tech Guy
The Tech Guy 1180 April 19th, 2015

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Episode #0: We're Back! April 19th, 2015

The New Screen Savers launches May 2nd. Subscribe now!

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Before You Buy

First looks at the 3DR Solo Drone and Sony HDR 4K Monitors at NAB.

Coding 101 23

Perl: RegEx Search and Replace

June 26 2014

Hosts: Fr. Robert Ballecer, SJ and Shannon Morse

Guest: Patrick Delahanty

The Code for today's show is available at our: Github

Ivory Tower

Let's talk about Regular Expressions
* In episode 2, we brushed past Regular Expressions ... OUR BAD

Defn: At its simplest, A "Regular Expression" or "Regex" is a type of pattern-matching that can be used in searches or find and replace operations.
* In a Regex, each character of the string is its own metacharacter that can be combined with other metacharacters to identify patterns and even context
* Regular Expressions are used in most modern languages, and figure prominently into modern search engines.

Perl is the standard-bearer for Regular Expressions in .NET, Java, Ruby and others

WHAT DOES THIS ALL MEAN?!?!?!
* Quite simply... REGEX allows you to find, match and replace patters within any data set.
* It lets you search NOT just complete strings, but parts of strings.
- You can then replace those strings, or parts of strings with other strings.

They're useful to parse files and provide a powerful search and replace tool.

Get in Touch With Us!

* Subscribe and get Coding 101 automatically at TWiT.tv!
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* Watch the show live and join the chatroom every Thursday at 1:30pm PST.
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*Check out our transcripts.