Of course, but you don't ask for awk or unix in a Perl forum, do you? 
... | rev | cut -f1 -d' ' | rev | sort -u

[download]
($q=q:Sq=~/;[c](.)(.)/;chr(-||-|5+lengthSq)`"S|oS2"`map{chr |+ord
}map{substrSq`S_+|`|}3E|-|`7**2-3:)=~y+S|`+$1,++print+eval$q,q,a,

[download]

In reply to Re^3: OT: Find unique values in a column by choroba
in thread OT: Find unique values in a column by rahulme81

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