Okay, this is almost a pure duplicate ... with one little piece of information that I just don't understand.
The original question is: Sed Explanation: sed '/./,$!d' file
And relates to the following:
sed '/./,$!d' file
The explanation at that question is really good except for one thing (and I don't have the reputation to post a comment to the answer to ask for an expansion). what is the meaning of the comma?
I know this seems like a waste (a whole new question) but I have not been really able to figure it out otherwise (regex documentation argh! lol).
