On Tue, 2008-02-05 at 14:40 -0500, obdulio santana wrote:
> May be this helps
>
> perl -lne "print if ++$D{$_} == 1" address.txt
>
> regards
>
>
> I have tried the above command , but it shows the following error, Can't modify single ref constructor in preincrement (++) at -e line 1, near "} ==" Execution of -e aborted due to compilation errors.
