On 13/03/15 14:02, Ruediger Meier wrote:
BTW I think there could be a minor improvement for coreutils tail for the cases "file is empty" or "-n 0". Maybe we could skip opening the file one time at the beginning. So that "tail -n0 -f logfile" would really never access the file unless it grows. cu, Rudi
I suspect that might break filesystems lying about the file size, such as proc or some compressed fs. There may also be issues with some network fs.
A tail <file> with <file> of len 0, would usually be empty. However, it would be a problem not to provide an output for tail /proc/$$/status
PS: tail -f already acts a bit funny in that case, as it tails the end of the file, then thinks it has been truncated and shows it in full.
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