ref: c0f4e97e4561ff42544e92512bbaf3d7d1f6a671 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 }