On Thursday 13 September 2007 20:19, Kurt Buff wrote: > On 9/13/07, Jerry McAllister <[EMAIL PROTECTED]> wrote: > > > The only space is the one separating the SMTP address from the OK or > > > NO. > > > > Then you should be able to tell it to sort on the first token in > > the string with white space as a separator and to eliminate > > duplicates. It has been a long time since I had need of sort. I > > don't remember the arguments/flags but am sure that type of thing can be > > done.
You can use uniq if the file is already sorted (if not, put a sort at the start of the pipe) - after using awk to pick the first field: awk '{print $1}' inputfile | uniq -u > Ya know, it's really easy to get wrapped around the axle on this stuff. > > I think I may have a better solution. The file I'm trying to massage > has a predecessor - the non-unique lines are the result of a > concatenation of two files. > > Silly me, it's better to 'grep -v' with the one file vs. the second > rather than trying to merge, sort and further massage the result. The > fix will be to use sed against the first file to remove the ' NO', > thus providing a clean argument for grepping the other file. If it's two files and you want to select or reject common lines, look at comm(1) as another technique. Jonathan _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"