Dear Maintainer, $ pr +0 pr: +0: No such file or directory $ pr +99999999999999999999 pr: + argument '99999999999999999999' too large this is inconsistent. Issue 8 Draft 3 says 110734 The following options shall be supported. In the following option descriptions, column, lines, 110735 offset, page, and width are positive decimal integers; gap is a non-negative decimal integer. 110736 +page Begin output at page number page of the formatted input. so this is strictly-speaking legal, but still weird: +0 is a file, but all other +[0-9][0-9]* combinations are numbers. As literature review: SysVr4 accepts +0 as a number (and doesn't check overflow), and NetBSD refuses +0 (likewise). Best, наб