Know How Bash Regex and Patterns Differ
Say you want to match a regular expression and get a capture a run of characters from it, but then you also want to replace characters in that same line. To do this entirely in Bash requires use of both a regular expression and a parameter expansion pattern match.
Study the following script to understand what is going on.
Can you spot the regular expression?
What type of regular expression is it? Which engine?
Can you spot the pattern match parameter expansion?
https://raw.githubusercontent.com/rwx...
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https://github.com/rwxrob/zet/tree/ma...