It is not an issue of connection with the server! I am looking for ways to perform string match over a large log file. I tried the following over a telnet object and my %parseLogData contains more than one string to be matched. 
  my $cmd="cat $logName";

    @content = $self->{conn}->cmd($cmd);

    unless ( @content = $self->{conn}->cmd($cmd)){
        $logger->error(__PACKAGE__ . ".$sub_name: Failed to execute th
+e shell command:$cmd ");
        $logger->debug(__PACKAGE__ . ".$sub_name: <-- Leaving Sub [0]"
+);
        return 0;

        for my $i ( 0 .. $#{$parseLogData{$_}}) {
        my $parseString = $parseLogData{$_}[$i];

    my $flag = 0;

    if (@line = grep{/\Q$parseString\E/i} @content)
    {
        $logger->debug(__PACKAGE__ . ".$sub_name: PARSE SUCCESS: Expec
+ted -> \"$parseString\" in \"$logName\": Count of Matches -> $#line")
+;
        $flag = 1;
    }
    else {
        $logger->debug(__PACKAGE__ . ".$sub_name: PARSE FAILED: Expect
+ed :: -> \"$parseString\" in \"$logName\" ");
        }
    }

[download]
The above code works well for smaller log files but fails over large file sizes. other approach was to copy the file locally and perform parsing, which is not possible due to server restriction to establish FTP session. Hence I need to know any other alternative for my problem. Thanks.

In reply to Parsing large File remotely by lazyreader

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