Dear Developer Team, I have encountered a problem related to fgrep, while I was trying to search back and forth in a file filled with a number of log messages. I have managed to narrow down the input file to a few lines, and also wrote a reproduction guide for it. I have checked it with a few different grep versions, but not all seemed to be affected. Grep 2.6.3 (CentOS 6) and 2.16 (Ubuntu 14.04) were, and 2.25 (Unbuntu 16.04) wasn't. The problem basically was, that I was fgrepping for messages in syslog-ng debug logs, and I was looking for matches that matched the log lines, that were sent to syslog-ng (ie. messages about incoming log messages), and there were a few messages, where there was no match for the whole message, but if I removed the last character of the string I was grepping for, then it did return a match. The match also showed the character I removed previously, so it was unclear why there was no match with the last character, and why there was without... I tried to look for already closed bugs that looked similar, but I did not manage to find anything similar. Thanks for your help! Best Regards, János Szigetvári -- Janos SZIGETVARI RHCE, License no. 150-053-692 E-mail: jszigetvari@gmail.com Phone: +36209440412 (Hungary) __@__˚V˚ Make the switch to open (source) applications, protocols, formats now: - windows -> Linux, iexplore -> Firefox, msoffice -> LibreOffice - msn -> jabber protocol (Pidgin, Google Talk) - mp3 -> ogg, wmv -> ogg, jpg -> png, doc/xls/ppt -> odt/ods/odp