STDOUT is missing the lines in total - numbers and content.

Anyway, running the program with strace may also give some hint.

Hi,

stripped it down to that level:

#!perl -w

use strict;
use warnings;
use Data::Dumper;
use Net::OpenSSH;

my $sshuser="user";
my $sshpwd="pwd";

my $device = $ARGV[0];
my $sshcmd = $ARGV[1];
my $error;
my $ssh;

my $path = "./Y.ssh";

$ssh = Net::OpenSSH->new(
    $device, 
    user => $sshuser, 
    passwd => $sshpwd,
    ctl_dir => $path,
    master_opts => [-o => "StrictHostKeyChecking=no", -o => "UserKnown
+HostsFile=/dev/null"],
    strict_mode => 0,
    master_stderr_discard => 1 # to get rid of login screen
);

my @cmdout; 
my @cmdout2; 
@cmdout2 = $ssh->capture({stdin_data => "\n"}, $sshcmd."\n");
    
open FILE, "<", "./rawout.txt";
@cmdout = <FILE>;
close(FILE);


$ssh->master_exited;

foreach (@cmdout) {
    print  $_;
}
exit 0;
[download]




YES - program is for testing ONLY
no sense !!

BUT
output misses some lines from time to time!!

Output is FINE if I don't run the capture

back to you - I'm out of ideas now, at least for today

Thanks for help!!

Don't call master_exited. Though that would probably not solve anything.

What is print returning?

for (@cmdout) {
  my $bytes = print $_;
  print STDERR "bytes: $bytes, err: $!\n";
}
[download]

Also, use strace in order to see what is going on at the OS level.