Use some kind of configuration -- hash, external files, __DATA__, etc -- to associate processes to a server ... 

# Untested, incomplete code.

my %map =
  ( 'host-p' => [qw[ cron apache ]]
  , 'host-q' => [qw[ ntpd ]]
  );

for my $host ( sort keys %map )
{
  #  Log on $host at this point.

  #  Check processes.
  foreach my $proc ( @{ $map{ $host } } )
  {
    printf qq[%s: %3s running]
      , $proc
      , check_proc( $proc ) ? '' : 'not' ;
  }

  #  Log off.
}

sub check_proc
{
  my ( $proc ) = @_;

  my $ps = make_ps( $proc );
  my $res = qx[ $ps ];
  # Check $? for cause of failure if you care.

  return
    defined $res && $res =~ m{ \b psname = $proc \b }x;
}

sub make_ps
{
  return sprintf q[ps -ef | grep psname=%s] , $_[0] ;
}

[download]

Your process checking looks too complicated; there might be OS specific commands/options that won't require filtering of ps run itself. Perhaps some native Perl module may be in existence for the purpose.

In reply to Re^3: How to automate login to different servers via ssh and check is some specific processes are running or not. by Anonymous Monk
in thread How to automate login to different servers via ssh and check is some specific processes are running or not. by Anonymous Monk

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