‘ed’ is a simple, straight-forward text editor available by default in Linux. It can be used to create / edit text files easily. If you ever get st...
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This is handy. Nice combination of explaining each action and showing screenshot - screenshots are like path markers for the audience to follow. (I like the step by step screenshot style rather than only showing a selection.)
Something interesting for someone to write out step by step examples for, is using regular expressions with ed.