thanks it is working but its providing details for all task id but I need it for particular task ids ( of a parent id)

I tried to make changes but still its showing data for all task id

#!/usr/bin/perl
use strict;

my $infile  = 'worker.log';
my $outfile = 'Consumer.CSV';
my @id   = ();
print "Please enter the parentid of running process: \n" ;
my $reqid = <STDIN>;
chop $reqid;
open IN,'<',$infile or die "$!";
# input
my %data = ();
while (<IN>) {
  chomp;
  next unless /Task:id=(\d+)/;

  my $taskid = $1;
  my (undef,$timestamp,undef)  = split /\s+/,$_,3;
   
  if (/(Started|Submitted|Done).*(consuming|job)/){
    my $i = ($1 eq 'Done') ? 1 : 0;
    my $proc = ($2 eq 'consuming') ? $2 : 'Submitted';
    $data{$taskid.' '.$proc}[$i] = $timestamp;
  }
  while ( /\{(\d+)-SUCCESSFUL\}/g ){
    push @id,$1 if ($taskid eq $reqid);
  }

}
close IN;


# output
open OUT,'>',$outfile or die "$!";
my @cols = qw(Taskid Started Done);
printf OUT "%s,%s,%s\n",@cols;
#print join ',',('Task id','Start time',"End time\n");
for my $id (reverse sort keys %data){
  printf OUT "%s,%s,%s\n",$id,@{$data{$id}};
}
[download]

Just skip over the other ids

  # chop $reqid; # use chomp
  chomp $reqid;
[download]

see chomp

while (<IN>) {
  chomp;
  next unless /Task:id=(\d+)/;

  my $taskid = $1;
  next unless ($taskid eq $reqid); ## <-- add
  my (undef,$timestamp,undef)  = split /\s+/,$_,3;
  ..
[download]

poj

problem with this approach is that $taskid eq $reqid will never be equal

we need something like this which u last time used to get task id

while ( /\{(\d+)-SUCCESSFUL\}/g ){
    push @id,$1 if ($taskid eq $reqid);
  }
[download]

and need to iterate around these @id