1BEGIN { 2 FS = "-" 3} 4/sh$/ { 5 n++ 6 l = length($NF) 7 s += l 8 ck %= l 9 totck += ck 10 print 11} 12END { 13 if (n > 0) { 14 printf "%d %d %d %fn\n", totck, n, s, s/n 15 } 16 else 17 print "n is zero" 18} 19