- Lab
- A Cloud Guru
More Regular Expressions: Using Lookarounds to Parse Data
While using regular expressions, lookarounds allow us to create zero-width boundaries where the boundaries are also regular expressions. This will enable us to ensure that our primary expression either begins or ends with the provided lookaround or does _not_ begin or end with the provided lookaround. The expression in the lookaround is matched, but not captured, so the resulting match is only the non-lookaround text. This allows us to fine-tune our expressions and ensure we're only matching what we want.
Path Info
Table of Contents
-
Challenge
Remove excess spacing from `highstate` file.
Remove the additional spacing before each line in the
highstatefile. -
Challenge
Using regular expressions to provide the desired data.
Craft a regular expression that will result in only the
__id__,__run_num__, and__sls__lines from thehighstatefile. -
Challenge
Create `sls-report.txt`.
Save the newly-generated list of information to
sls-report.txt.
What's a lab?
Hands-on Labs are real environments created by industry experts to help you learn. These environments help you gain knowledge and experience, practice without compromising your system, test without risk, destroy without fear, and let you learn from your mistakes. Hands-on Labs: practice your skills before delivering in the real world.
Provided environment for hands-on practice
We will provide the credentials and environment necessary for you to practice right within your browser.
Guided walkthrough
Follow along with the author’s guided walkthrough and build something new in your provided environment!
Did you know?
On average, you retain 75% more of your learning if you get time for practice.
