No I still have problems with a file with Swedish characters. In a live Ubuntu 16.04 LTS I installed grep version 2.25-1~16.04.1, but it did not help, as you can see from the following dialogue in a terminal window.
ubuntu@ubuntu:~$ apt-cache policy grep grep: Installerad: 2.25-1~16.04.1 Kandidat: 2.25-1~16.04.1 Versionstabell: *** 2.25-1~16.04.1 500 500 http://archive.ubuntu.com/ubuntu xenial-updates/main amd64 Packages 100 /var/lib/dpkg/status 2.24-1 500 500 http://archive.ubuntu.com/ubuntu xenial/main amd64 Packages ubuntu@ubuntu:~$ grep ning seen-binary-by-grep.txt Binary file seen-binary-by-grep.txt matches ubuntu@ubuntu:~$ grep -a ning seen-binary-by-grep.txt vMgs ingen l�sning - the Swedish character o-umlaut osmak ingen l�sning smak lösningen - the solution ubuntu@ubuntu:~$ tail -n1 seen-binary-by-grep.txt |grep ning smak lösningen - the solution ubuntu@ubuntu:~$ tail -n2 seen-binary-by-grep.txt |grep ning Binary file (standard input) matches ubuntu@ubuntu:~$ tail -n2 seen-binary-by-grep.txt |grep -a ning osmak ingen l�sning smak lösningen - the solution ubuntu@ubuntu:~$ -o- This works with older versions of grub, so I would call it a regression. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1535458 Title: [15.10 REGRESSION] Randomly wrongly detects files as binary To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grep/+bug/1535458/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs