emanuele6 1707854921 learn `tail -n+0' is an undocumented and obsolete alias for `tail -n+1' ("'tail -n +0' is actually meaningless, but for Unix compatibility it's treated the same as 'tail -n +1'." from a comment in the source code of GNU coreutils' tail). It works on at least GNU tail, busybox tail, and NetBSD tail.