nested BEGIN-END blocks in awk

awk 'BEGIN {print FILE}
{printf "Part\t\tStart\t\tEnd"
printf "%s %-6s %-6d",Part1,1,$end1
printf "%s %-6d %-6d",Part2,$start2,$end2}
END {printf "total records:%d", $tot}' >meta.txt

This is my code and is not working. It is a part of a shell script, all the variables are computed in other part of script. My I/P files are tables, and I have to find out no. of records in them and dispay the results in a file 开发者_如何学Goin the form of a table like

File   Start  End
File1  1      205
file2  206    417

and so on

If those are shell variables, you need to pass them into the AWK script:

awk -v "start2=$start2" -v "end1=$end1" -v "end2=$end2" -v "tot=$tot" 'BEGIN {print FILE}
    {printf "Part\t\tStart\t\tEnd"
    printf "%s %-6s %-6d", Part1, 1, end1
    printf "%s %-6d %-6d", Part2, start2, end2}
    END {printf "total records:%d", tot}' >meta.txt

There is only one BEGIN and END block in awk. I actually don't really understanding what you are trying to do. So I expect you to show more examples. however, to create a file table in awk, you can do it in the BEGIN block

awk 'BEGIN{
  print "field1\tfield2\n"
  ...
  print "one\ttwo"
  ...
}' > outputfile.txt

if you have an input file to process, and the table contents comes from this input file

awk 'BEGIN{
  print "field1\tfield2\n"
}
{
  ...
  print "one\ttwo"
  ...
}END{
  print "so some final stuff here"
}' inputfile > outputfile.txt