You tell a build tool where you want to go, and it figures out the shortest path to get there. But when things go wrong, understanding why can be challenging. …
Category: Premium Episodes
Episode #641
Unroll Test Loops
Be wary of the temptation to DRY up testing code. As you'll see in this episode, a refactoring that might add value to to application code can actually make your …
Episode #640
Autosplit
Ruby has tools like -n and -p for filtering and summarizing text right from the command-line. But what about columnar input, like process listings or CSV? Today we'll see how …
Episode #639
Interpolation over Concatenation
Why do Ruby programmers use so much String interpolation where other devs might prefer concatenation? Join Jessitron and Avdi for a dialog on language design, idiom, and history!
Episode #638
Ruby as a Filter
Learn how Ruby's -p flag along with a bunch of handy shortcuts can take a script's worth of text filtering and shrink it to a one-liner!
Episode #637
mitmproxy
Have you ever needed to understand the HTTP[S] communication between a client program and its server? Learn to use the mitmproxy server to spy on HTTP requests---even if they are …
Episode #636
I got my flippy-floppies
Put on your flip-flops, because today we venture ever deeper into the world of Ruby one-liners!
Episode #635
ARGF, That’s Some AWK-ward Ruby!
Diving deeper into the world of Ruby one-liners, today we'll learn about more special variables, querying the input stream, and... ghoooooost loooooops! 👻
Episode #634
You Could Have Sed It in Ruby
Don't spend time mastering UNIX tools if you can use Ruby one-liners instead.