ref: 1c424b1b4d5931f2a4b87b6f0f75827bc53ff9d7 dir: /testdir/t.split9/
{ n = split ($0, x, FS) if (n != NF) print "botch at ", NR, n, NF for (i=1; i<=n; i++) if ($i != x[i]) print "diff at ", i, x[i], $i }