Print file in particular order in bash Languages

Print file in particular order in bash

I have file with content:file.txt:In this file between every First launch, content can be different, it is not fixed ( for example: First launch 3 contain three elements while First launch 2 contents only 2 elements), so any number of content can be between the First launch pattern which is...
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What is a list in bash? Languages

What is a list in bash?

I have searched for a similar question here, but surprisingly could not find any.In GNU bash, there is (a construct? a structure? a data type?) called "arrays". Arrays are well documented in the bash documentation, so I think that I understand the basics.
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