Hello Team, May I please know the reason for the following behaviour of the sort command... ------------------ 0 $ sort bug1_file1 b103i/pass.txt b103/pass.txt 0 $ sort bug1_file2 b103/done.txt b103i/done.txt ------------------ The output is same with options '-s', '-g', '-n', '-d' (used one at a time) also. ------------------ 0 $ sort --version sort (GNU coreutils) 5.97 Copyright (C) 2006 Free Software Foundation, Inc. This is free software. You may redistribute copies of it under the terms of the GNU General Public License . There is NO WARRANTY, to the extent permitted by law. Written by Mike Haertel and Paul Eggert. Regards, Krishna