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So -e :a is the first command that labels it a. -e 's/\(.*[0-9] is part of the second command with the substitution option and it pulls the first set of numbers into the pattern space and counts...

I have a file with a lot of numbers in it and I need to clean it up and make it look nice and proper. I found this little gem of a one-liner and basically understand what it is doing but I would...

The one-liner is great and I understand what it does in the end, like putting a comma in as a delimiter. What I need, being a newb, is a breakdown of what each part of the one-liner is doing. I...