Hi, I am fairly new to fork processes. I want to fork a process such that the parent process parses through each file I have in a certain directory and gets the required information and then in a child process submit that acquired information from the file into another module so that it will process that in the background. I am able to do it, however, the last child process is always repeated so I end up with two outputs for that parent file that are exactly the same. Here is a snippet of the code I use to fork the process. Let me know if there is an error in the code that makes it repeat the last process. 
#Get list of files from request_directory
@request_files = <REQUESTS>;
#start submitting jobs for the not_yet_run requests
while (( $available_machine) && ($request_file_exists){
  #this should be the parent process
  #read request file
  ($bling, $file, $Tool) = split(/~/, $request_file);
  open(REQ,"<$home/Input_Files/$request_file");
  while (<REQ>){
    $line = $_;
    #process each $line in the file to extract info that I
    #want
  }

  #Once I have extracted the information from the file
  #I want that to be the input to a child process

  #fork process to run SubmitToChi
  $child_id = fork;

  if ($child_id == 0){
    #this is the child process
    #print STDERR "run $cmd on $request_file on $mach\n";
    #run ChiSub using a remote shell (should I use             #someth
+ing else?)
    `rsh $mach $cmd $path $file $family $sub_family $seq_size $Tool`; 
+ #these variables are my input to the child process
  }
}

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Please Monks, let me know what you think is the problem. I am not familiar with the fork process, so I don't know why the last child process is being repeated twice. Thanks

In reply to fork processes by arodri7

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