ref: c4f1e9166e14cd17667438f6af69460ad1d35ecf dir: /test/t.split8/
{ n = split ($0, x, /[ ]+/) print n if (n != NF) print "split botch at ", NR, n, NF for (i=1; i<=n; i++) if ($i != x[i]) print "different element at ", i, x[i], $i }