I need to query on the 2nd line which I am seeing in the output. I need to check if the command returns on "Listener LISTENER is running on" and provide the desired output. My code is able to read the first line and not the second line which I need to verify. Please advise.
Added a While statement so it can read the 2nd line, did not work.
use strict;
use warnings;
my $cmd="srvctl status listener";
my $listenerstatus0;
my $msg0;
my $msg1;
open(Row1Stat,"$cmd |") || die ("Could not read the pipe\n");
$listenerstatus0 = <Row1Stat>;
close(Row1Stat);
if( $listenerstatus0 =~ m/Listener LISTENER is running/)
{
$msg0="LISTENER is running";
$msg1=1
}
elsif ($listenerstatus0 =~ m/Listener LISTENER is not running/) {
$msg0 = "LISTENER is not running";
$msg1 = 0;
}
else {
$msg0 = "Unable to Query LISTENER Status";
$msg1 = 0;
}
print "\nStatistic.Name1:$msg1";
print "\nMessage.Name1:$msg0";
Below is the Output of the command, I need to check the 2nd line.
srvctl status listener
Listener LISTENER is enabled
Listener LISTENER is running on node(s): XYZ
The script needs to check "Listener LISTENER is running " and exit out with the exit code as defined in the script.
If you want to read two lines you shouldn't stop reading after the first:
open(Row1Stat,"$cmd |") || die ("Could not read the pipe\n");
$ignorethis= <Row1Stat>; # Read 1st line
$listenerstatus0 = <Row1Stat>; # Read 2nd line
close(Row1Stat);
Related
I have a exp script -script.exp to enter a name and password. it calls test.sh file like below.
set timeout -1
spawn ./test.sh -create
match_max 100000
expect -exact "Enter the name: "
send -- "abcd\r"
expect -exact "\r
Please confirm password: "
send -- "xxy\r"
expect -exact "\r
expect eof
It gives me a output at expect window -
"Successfully entered the name"
if some issue there it throws exception or error message.
I run this expect script in a Perl file-- like below
$cmd="expect script.exp";
system($cmd);
$outputfromexp=?
I need a output of fail or passed status of exp at Perl console after running the script.
How can i do this? Please help me.
I tried calling as suggested in my Perl script--
use strict;
use warnings;
sub sysrun {
my ($command) ="expect script.exp";
my $ret_code;
$ret_code = system("$command");
if ( $ret_code == 0 ) {
# Job suceeded
$ret_code = 1;
}
else {
# Job Failed
$ret_code = 0;
}
return ($ret_code);
}
my $ret_code=sysrun();
print "reuturmsfg- $ret_code\n";
But its printing nothing-- just reuturmsfg-.
I made the changes-
my $ret_code=sysrun();
it gives me 0 and 1 return code.
If I understand the question correctly, to get the return code you want to do:
system($cmd);
my $ret_code = $?;
To get STDOUT output from the execution:
my #out = `$cmd`;
my $ret_code = $?;
I strongly suggest using strict and warnings in your code.
I'm trying to use if condition to check if command has passed, but its not working. Even though the mount has been successful it goes to failed message. When i enter this command, it retruns to the prompt without any message, hence i'm comparing with a "". And when i do a "ls" of destination folder, it shows all contents of source folder. Any help? Is my if condition correct?
my $port = new Net::Telnet->new(Host=>$ip,Port=>$ip_port,Timeout => "$timeout", Dump_Log => "dumplog.log", Errmode=> "return" );
if($port->cmd("mount -t nfs -o nolock <path-of-source-folder> <destination-folder>") eq "")
{
print "Successful\n";
}
else{
print "Failed.\n ";
}
In scalar context, the Net::Telnet cmd method returns 1 on success (not a string). Your check should be something like:
if ($port->cmd("mount -t nfs -o nolock <path-of-source-folder> <destination-folder>") == 1)
{
print "Successful\n";
} else {
print "Failed.\n";
}
If you actually want to collect the output from the mount command and inspect it, you will have to either call it in list context or pass a stringref argument, like so:
my #outlines = $port->cmd("mount ...");
Or:
my $out;
my $ret = $port->cmd("mount ...", [Output => \$out]);
if ($ret == 1)
{
# inspect $out
}
See the Net::Telnet documentation for more.
Your check for the result seems to be wrong. The documenation of Net::Telnet says that
This method sends the command $string, and reads the characters sent back by the command up until and including the matching prompt. It's assumed that the program to which you're sending is some kind of command prompting interpreter such as a shell.
The command $string is automatically appended with the output_record_separator, by default it is "\n". This is similar to someone typing a command and hitting the return key. Set the output_record_separator to change this behavior.
In a scalar context, the characters read from the remote side are discarded and 1 is returned on success.
So you need to check in a scalar context
if ($port->cmd("..") ) {
...
}
Can someone tell me what this means?
if (not defined $config{'crontab'}) {
die "no crontab defined!";
}
I want to open a file crontab.txt but the perl script crashes at this line and I don't really know any perl.
EDIT 1
It goes like this:
sub main()
{
my %config = %{getCommandLineOptions()};
my $programdir = File::Spec->canonpath ( (fileparse ( Win32::GetFullPathName($PROGRAM_NAME) ))[1] );
my $logdir = File::Spec->catdir ($programdir, 'logs');
$logfile = File::Spec->catfile ($logdir, 'cronw.log');
configureLogger($logfile);
$log = get_logger("cronw::cronService-pl");
# if --exec option supplied, we are being invoked to execute a job
if ($config{exec}) {
execJob(decodeArgs($config{exec}), decodeArgs($config{args}));
return;
}
my $cronfile = $config{'crontab'};
$log->info('starting service');
$log->debug('programdir: '.$programdir);
$log->debug('logfile: '.$logfile);
if (not defined $config{'crontab'}) {
$log->error("no crontab defined!\n");
die "no crontab defined!";
# fixme: crontab detection?
}
$log->debug('crontab: '.$config{'crontab'});
And I'm trying to load this 'crontab.txt' file...
sub getCommandLineOptions()
{
my $clParser = new Getopt::Long::Parser config => ["gnu_getopt", "pass_through"];
my %config = ();
my #parameter = ( 'crontab|cronfile=s',
'exec=s',
'args=s',
'v|verbose'
);
$clParser->getoptions (\%config, #parameter);
if (scalar (#ARGV) != 0) { $config{'unknownParameter'} = $true; }
return \%config;
}
Probably I have to give the script an argument
Probably I have to give the script an argument
I would say so.
$ script --cronfile=somefile
That code looks to see whether there is a key 'crontab' in the hash %config. If not, then it calls die and terminates.
If that's not what you expect to happen, then somewhere else in your script there should be something that is setting $config{'crontab'}, but there is not currently enough information in your question to determine what that might be.
Probably the file path of crontab.txt is expected in %config hash, pointed by the 'crontab' key, but isn't there! If so, a DIRTY solution CAN BE:
$config{'crontab'}='FULLPATH/crontab.txt';
#if (not defined $config{'crontab'}) {
# die "no crontab defined!";
#}
but this may not work because there is something like $config{'prefix'} and what you will try to open is the path represented by the concatenation of both, or just because in $config{'crontab'} is expected any other value than full path!
I am trying to figure the best logic to determine if the user of my script has left multiple SQL option enabled in the config file the reason is only one is supported.
The first idea I had was to use a simple variable that was set to either 0,1,2,3 and then read by the script to run the correct subroutine. Then I got to thinking if they was a way to have it done by whether the section existed in the config file, it was possible with the module I am using. But the problem I ran into now is if I have it determining which SQL software to use based on the existence of a certain config section doesn't that mean I have to have logic that says if "this" section and "that" section exist then error out? But then that would mean I would to take into account all combination of all section that pertain. Right?
Was the best way to approach this the first way that I had done it? or is there a better way?
I have included samples of my config file and the unfinished subroutine which the logic would be enclosed in. I would control the existence of the sections by commenting them out in the config file. I am writing in Perl by the way and I am using Config::IniFiles for reading and writing to the INI file.
Any ideas would be very appreciated.
sub sql_option {
if (config_file()->SectionExists('SQLite')) {
sqlite_setup();
} elsif (config_file()->SectionExists('MySQL')) {
mysql_setup();
} elsif (config_file()->SectionExists('PgSQL')) {
pgsql_setup();
} elsif (config_file()->SectionExists('MSSQL')) {
mssql_setup();
} else {
print color 'red';
print "No SQL server option defined!\n";
print color 'reset';
print "\n";
die "Script halted!\n";
}
}
And the INI file:
[ESX]
host=esxi01.solignis.local
;port=
user=root
password=
[SQLite]
db=discovery.db
[MySQL]
host=sql01.solignis.local
;port=
user=root
password=
;[PgSQL]
;host=
;port=
;user=
;password=
;[MSSQL]
;host=
;port=
;user=
;password=
Here's one way of doing it:
my %sql_setup_functions = (
SQLite => \&sqlite_setup,
MySQL => \&mysql_setup,
PgSQL => \&pgsql_setup,
MSSQL => \&mssql_setup,
);
sub sql_option
{
my #engines = grep {
config_file()->SectionExists($_)
} keys %sql_setup_functions;
unless (#engines == 1) {
print color 'red';
if (#engines) {
print "Multiple SQL server options defined!\n";
print " $_\n" for sort #engines;
} else {
print "No SQL server option defined!\n";
}
print color 'reset';
print "\n";
die "Script halted!\n";
} # end unless exactly 1 SQL engine
# Call the setup function for the selected engine:
$sql_setup_functions{$engines[0]}->();
} # end sql_option
I am trying to make my own Jabber bot but i have run into a little trouble. I have gotten my bot to respond to messages, however, if I try to change the bot's presence then it seems as though all of the messages you send to the bot get delayed.
What I mean is when I run the script I change the presence so I can see that it is online. Then when I send it a message it takes three before the callback subroutine I have set up for messages gets called. After the thirrd message is sent and the chat subroutine is called it still process the first message I sent.
This really doesn't pose too much of a problem except that I have it set up to log out when I send the message "logout" and it has to be followed by two more messages in order to log out. I am not sure what it is that I have to do to fix this but i think it has something to do with iq packets because I have an iq callback set as well and it gets called two times after setting the presence.
Here is my source code:
#!/usr/bin/perl
use strict;
use warnings;
#Libraries
use Net::Jabber;
use DBI;
use DBD::mysql;
#--------------- Config Vars -----------------
# Jabber Client
my $jbrHostname = "DOMAINNAME";
my $jbrUserName = "USERNAME";
my $jbrPassword = "PASSWORD";
my $jbrResource = "RESOURCE";
my $jbrBoss = new Net::Jabber::JID();
$jbrBoss->SetJID(userid=>"USERNAME",server=>$jbrHostname);
# MySQL
my $dbHostname = "DOMAINNAME";
my $dbName = "DATABASENAME";
my $dbUserName = "USERNAME";
my $dbPassword = "PASSWORD";
#--------------- End Config -----------------
# connect to the db
my $dbh = DBI->connect("DBI:mysql:database=$dbName;host=$dbHostname",$dbUserName, $dbPassword, {RaiseError => 1}) or die "Couldn't connect to the database: $!\n";
# create a new jabber client and connect to server
my $jabberBot = Net::Jabber::Client->new();
my $status = $jabberBot->Connect(hostname=>$jbrHostname) or die "Cannot connect ($!)\n";
my #results = $jabberBot->AuthSend(username=>$jbrUserName,password=>$jbrPassword,resource=>$jbrResource);
if($results[0] ne "ok")
{
die "Jabber auth error #results\n";
}
# set jabber bot callbacks
$jabberBot->SetMessageCallBacks(chat=>\&chat);
$jabberBot->SetPresenceCallBacks(available=>\&welcome);
$jabberBot->SetCallBacks(iq=>\&gotIQ);
$jabberBot->PresenceSend(type=>"available");
$jabberBot->Process(1);
sub welcome
{
$jabberBot->MessageSend(to=>$jbrBoss->GetJID(),subject=>"",body=>"Hello There!",type=>"chat",priority=>10);
&keepItGoing;
}
$jabberBot->MessageSend(to=>$jbrBoss->GetJID(),subject=>"",body=>"Hello There! Global...",type=>"chat",priority=>10);
#$jabberBot->Process(5);
&keepItGoing;
sub chat
{
print "Chat Called!\n";
my ($sessionID,$msg) = #_;
$jabberBot->MessageSend(to=>$msg->GetFrom(),subject=>"",body=>"Chatting!",type=>"chat",priority=>10);
if($msg->GetBody() ne 'logout')
{
print $msg->GetBody()."\n";
&keepItGoing;
}
else
{
&killBot($msg);
}
}
sub gotIQ
{
print $_[1]->GetID()."\n";
&chat;
}
sub keepItGoing
{
print "Movin' the chains!\n";
my $proc = $jabberBot->Process(1);
while(defined($proc) && $proc != 1)
{
$proc = $jabberBot->Process(1);
}
}
sub killBot
{
$jabberBot->MessageSend(to=>$_[0]->GetFrom(),subject=>"",body=>"Logging Out!",type=>"chat",priority=>10);
$jabberBot->Process(1);
$jabberBot->Disconnect();
exit;
}
Thanks for your help!
You've got resource starvation because of your keepItGoing routine. In general, trying to use XMPP synchronously like this is not going to work. I suggest getting your callbacks set up, then just calling Process() in one loop.
The docs for Process() say:
Process(integer) - takes the timeout period as an argument. If no
timeout is listed then the function blocks until
a packet is received. Otherwise it waits that
number of seconds and then exits so your program
can continue doing useful things. NOTE: This is
important for GUIs. You need to leave time to
process GUI commands even if you are waiting for
packets. The following are the possible return
values, and what they mean:
1 - Status ok, data received.
0 - Status ok, no data received.
undef - Status not ok, stop processing.
IMPORTANT: You need to check the output of every
Process. If you get an undef then the connection
died and you should behave accordingly.
Each time you call Process(), 0 or more of your callbacks will fire. You never know which, since it depends on server timing. If you want for Process() to return before sending something, you're almost always thinking synchronously, rather than asych, which kills you in XMPP.
In your case, if you remove the call to keepItGoing from chat(), I bet things will work more like you expect.
Replace the line:
$jabberBot->Process(1);
with these:
while (defined($jabberBot->Process(1))) {
# Do stuff here
}