As I wrote – I can’t use external modules by definition.
I want to print the STDOUT and STDERR to the console and log file thereat.
Something like the code below: 
open(LOG, "> $LOG_FILE") || die "Can't redirect stdout";
open(STDERR, "> $LOG_FILE")   || die "Can't dup stdout";
#open(STDERR, ">&STDOUT")   || die "Can't dup stdout";
    
open (CMD, " ls |");

while (<CMD>)
{
    lprint ($_)
}

close(CMD);

sub lprint ()
{    
    my ($line) = @_;
    print LOG $line;    
    print STDERR $line;
#    print STDERR $_;
    print $line;
}

[download]
The problem with the code above is that I didn’t successes to control the STDERR output Please advice.

In reply to Re^8: Print STDOUT and STDERR to file and to console by Noame
in thread Print STDOUT and STDERR to file and to console by Noame

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