"
Band,Album,Year

Fugazi,In On The Kill Taker,1993
Fugazi,The Argument,2001{$x}

Fugazi,7 Songs,1988
Fugazi,Repeater,1990
Fugazi,Steady Diet of Nothing,1991

" | save -f /tmp/test.txt 


#-s is skip empty lines
let data = open /tmp/test.txt | lines -s | split column "," Band Album Year | skip 1 | sort-by Year

$data | each { |row| $row.Band + ":" + $row.Album + ":" + $row.Year }
$data |to csv