Hello dear Monks,

I have written a code that makes some operations in several directories then gathers the results in a file

The problem is that no error is indicated but the outfile file is void. Could you check ?, thanks.

Here is a simplified version so if there are some errors, there should be minor. I believe that the problem may lie with the line where I call the child script. 

use strict;

BEGIN {
  open(STDERR, ">stderr.log")
    or die "Failed to open log file";
}

my $slot_outfile = "results.csv";
open my $SLOT_OUTFILE, q{>}, $slot_outfile or die;

my @REG_list = qw{Regulation_AZT Regulation_IOP Regulation_AERTC};

chdir("..");
chdir("ALL_WEEKS");

my $reg;
my $week = "W36";
foreach $reg (@REG_list){    
    chdir("semaine_${week}/${reg}") or die "Can't go into the director
+y $reg!";

    my @SLOTS = glob("slot_list*.out");
    my @SLOTS_01 = grep /(\w+).(\d\d).(01).(\w+).out/, @SLOTS;
    my $slot_file = $SLOTS_01[0];
    
    my $cmd = "perl ../../../WP4_utility_analysis/WP4_utility.pl $slot
+_file $SLOT_OUTFILE";
    system($cmd);
chdir("../..");
}

[download]

and the child program WP4_utility.pl is 

use strict;
BEGIN {
  open(STDERR, ">stderr2.log")
    or die "Failed to open log file";
}

my $slot_file = $ARGV[0];
my $OUFTILE = $ARGV[1];

open my $SLOT_INFILE, q{<}, $slot_file;
my %hash;


while (my $line = <$SLOT_INFILE>) {
     my @Elements = split /;/, $line;
     $hash{$Elements[0]} = $Elements[1];
}

my @Keys = keys %hash;
my $key;
foreach $key(@Keys){
      print $OUTFILE "$key;$hash{$key}\n";
}

close STDERR;

[download]

In reply to results printing error by steph_bow

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