As we continue exploring Ruby one-liner alternatives to UNIX command-line operations, today we tackle a common case: a combination of grepping through multiple files, and collating the results.
Tag: command line
Episode #644
Console Width
Have you ever wondered how to tailor Ruby console output to the specific size of the user's terminal? In this video you'll learn how, using the io/console standard library!
Episode #642
Line Ending Processing Mode
Want line terminators in input text to just Go Away? Ruby has a mode for that!
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 #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 #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.
Episode #623
Strace
Learn to use strace - a powerful microscope for peering into a program's interactions with the operating system.