Несогласованные результаты команды du

Невозможно выполнить репликацию ни с BSD, ни с GNU grep :

BSD:

$ cat test
aa bb
CC cc
dd ee
$ grep [A-Z] test
CC cc
$ grep --version
grep (BSD grep) 2.5.1-FreeBSD

GNU:

$ cat test
aa bb
CC cc
dd ee
$ grep [A-Z] test
CC cc
$ grep --version
grep (GNU grep) 2.25
Copyright (C) 2016 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Written by Mike Haertel and others, see <http://git.sv.gnu.org/cgit/grep.git/tree/AUTHORS>.