Task $11$

By default, the comm command separates $($delimits$)$ the output columns with a tab. To change the delimiter from a tab to another character, use the $--$output$-$delimiter option. For example, to separate columns using the plus sign use the following command.

comm $--$nocheck$-$order $--$output$-$delimiter$=+$ avengers.txt avengers$2.$txt

Task $12$

Compare the $2$ avengers files separating each column with commas $(,).$

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