Questions where working on more than one line is a relevant aspect. In most cases that means repeating the same command(s) over several lines. – Related: [tag:repeated-commands]

Related:

Questions where  (potentially) working on multiple lines  is not a relevant aspect  should not be tagged , even if they relate to line multiplicity in some way. An example would be  counting the number of occurrences of a word in a file:  In this case it doesn't matter whether the file has one or multiple lines.

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