The most recent stable version of coreutils is 5.94; consider upgrading (although that does not change your report).
> Sort : the -u (unique) and -n (numeric) options seem to clash, removing too > many lines. > > > [EMAIL PROTECTED] data]# cat /tmp/new_spammers > 64.202.165.132 > 64.202.165.131 > 64.202.165.133 > > > [EMAIL PROTECTED] data]# sort -u < /tmp/new_spammers > 64.202.165.131 > 64.202.165.132 > 64.202.165.133 > > [ > [EMAIL PROTECTED] data]# sort -n < /tmp/new_spammers > 64.202.165.131 > 64.202.165.132 > 64.202.165.133 > > > [EMAIL PROTECTED] data]# sort -u -n < /tmp/new_spammers > 64.202.165.132 Not a bug. This behavior is required by POSIX, http://www.opengroup.org/onlinepubs/009695399/utilities/sort.html, which states that -n restricts the key to the first numeric field, and that -u uniquifies based on the sort key. In your sample file, the unique key is 64, and all three lines have the same key. When -n or -u is used alone, a tiebreaker is used that sorts based on the rest of the line. But when used together, the behavior correctly stops after one line. -- Eric Blake _______________________________________________ Bug-coreutils mailing list Bug-coreutils@gnu.org http://lists.gnu.org/mailman/listinfo/bug-coreutils
