Shell Programming and Scripting

{print basename infile, "line:", FNR, " blank field:", i}

awk -F/ '{print $NF}'

 
for infile in /folder/file.1$.5$   
do

  nawk -v infile=$infile  ' {
      if(FILENAME=="pos.txt" )
      { 
           pos[FNR]=$1; len[FNR]=($2-$1)+1; vals++; next 
      }
      if(FILENAME==infile )
      {         
           for(i=1; i<=vals; i++)
           {
             testval=substr($0,pos[i], len[i])
             gsub(/ /, "", testval)
             if(length(testval)==0) {print infile, "line:", FNR, " blank field:", i}
           }  
           next         
      } 
  } '  pos.txt  $infile

done > report.txt

{print infile, "line:", FNR, " blank field:", i}

{n=split(infile,a,"/");print a[n], "line:", FNR, " blank field:", i}