Pádraig Brady wrote:
Author: Jim Meyering<j...@meyering.net> Date: Thu Sep 25 12:58:50 1997 +0000 Make echo conform to POSIX. By default, don't interpret backslash escape sequences.POSIX may have changed in the meantime, but POSIXLY_CORRECT was never used as a condition for enabling interpretation of escapes.
POSIX certainly did change in the meantime. In 1997 it was POSIX.2 (1992), whereas the requirements we're talking about weren't added until POSIX-2001. So the bug is that coreutils echo hasn't been upgraded to the new standard since 2001 and nobody has reported this until now.
