[ILUG] comparing files

[Gavin McCullagh]

On Mon, 02 Feb 2004, Niall O Broin wrote:

> On Monday 2 February 2004, ilug_gmc at fiachra.ucd.ie (Gavin McCullagh)
> wrote:
> 
> >On Mon, 02 Feb 2004, Liam Bedford wrote:
> >
> >> hmm.. wasn't there a tip from padraig.. something like
> >> sort < file1 < file2 | uniq -u
> >
> >is this not equivalent to 
> >
> >sort -u file1 file2
> 
> No, it's not, and you probably missed the original post. There were two
> files, each of which had names, and the poster needed only those names
> which were only mentioned once in total. For this you need uniq -u
> (which outputs ONLY those lines which are unique)

Ah yes, somehow missed the -u 

Thanks
Gavin