Hi, We are facing issue when using sort, could you please help us to understand why? Thanks a lot. We run below command on two servers, but got different outputs. I attached source file (property_contexts) and two outputs files(sort_property_context_local.txt & sort_property_context_slave.txt). $sort -u property_contexts -o sort_property_context.txt As checked, we use same version of sort on that two servers: local:~ $sort --version sort (GNU coreutils) 8.21 Copyright (C) 2013 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later . 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 Paul Eggert. -------------------------------------------------------- slave:~ $sort --version sort (GNU coreutils) 8.21 Copyright (C) 2013 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later . 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 Paul Eggert. Best Regards