Note that printf reuses the format if it runs out of format specifiers, which in the examples above allows you to print two lines (four values) with only two format specifiers.

You can read the printf man page for much more detail on that. Just about every format sequence also allows you to specify a field width and a precision, which is where all of this gets both ...

I have a printf statment with a value I want to direct into a file.I have two problems.1. How do I direct (Append) my printf or print value into a file?2. How do I make sure the file does not ...