Here is another file where the close statement is missing, I tried to add it at the bottom, but it did not work.
#---------Nawk12--------------
{
if (FNR==1) {
for (j=1;j<=11;j++) a[j] = 0
fn1 = FILENAME
sub(/[^0-9]*/,"",fn1)
fn2 = "pre_build_e" fn1...