Hi Monks,

I am trying to divide one huge file into two files using perl. My source file is something like this

######## file ########

1. command:read address:0xA

2. command:write address:0xB

3. writedata:0x12

4. writedata:0x34

5. writedata:0x56

6. writedata:0x78

7. command:read address:0xC

8. command:write address:0xD

9. writedata:0x9A

10. writedata:0xBC

11. writedata:0xDE

12. writedata:0xF0

######## file ########

Taking the above file as input I want to split the content into two different files based on address[0]=0/1. If address[0]=1, I want to print that line to one.txt else print that line to zero.txt no matter whether it is write/read. There is no problem to handle lines of read as it has only one line but the issue here is every write command is followed by next 4 lines of write data. How to print 4 write data lines followed by every write command line to both the output files.

######## code starts ########
 while (my $line1 = <IN_FILE>) {

      if( ($line1 =~ /address/) ) {

      $line1 =~ /address:([a-z0-9-]+)\s+/;

      my $address = hex $1;
 
      $grep = substr( (sprintf "%b", $address), -1, 1);

          if($grep) {

          printf OUT_FILE1 ("$line1");

          }

          else {

          printf OUT_FILE2 ("$line1");
      }
      }
  }

######## code ends ########

[download]

I am struggling here for printing 4 write data lines because my while loop iterates per line and if I am using any loop inside my while loop to print the $line1 variable 4 times then it's printing the same line for 4 times

In reply to Print multiple lines based on condition by syedasadali95

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