title: In perl delete a specific lines from a file
body: <p>I want to delete the the line with HPOM, and keep only the line node:</p>
  
  <p>my code:</p>
  
  <pre><code>#!/usr/bin/perl
  use strict;
  
  open (FILE, "/tmp/agentstas.dat");
  
  my @lines = &lt;FILE&gt;;
  
  my $lines;
  
  my $string = "Node";
  
  my $badstring = "hpom";
  
  foreach $lines (@lines) {
  
      if ($lines =~ $string || $lines !=~ $badstring)  { print "$lines"; }
  
  }
  </code></pre>
  
  <p>the results:</p>
  
  <pre><code>Node atum1:
  HPOM Managed Node status :
  Node vmatum3:
  HPOM Managed Node status :
  Node ls_sfda-new:
  HPOM Managed Node status :
  Node risto4:
  HPOM Managed Node status :
  Node jzn18z1:
  HPOM Managed Node status :
  Node sqlcatom:
  HPOM Managed Node status :
  Node new-sspc-as:
  HPOM Managed Node status :
  Node dafna:
  HPOM Managed Node status :
  Node adonis:
  HPOM Managed Node status :
  Node hydra:
  HPOM Managed Node status :
  Node kukuad:
  HPOM Managed Node status :
  Node janus1:
  HPOM Managed Node status :
  Node janus2:
  HPOM Managed Node status :
  Node zubin.extranet.gov.il:
  HPOM Managed Node status :
  Node nyx-as:
  HPOM Managed Node status :
  Node keto1:
  HPOM Managed Node status :
  Node sql12ao1:
  HPOM Managed Node status :
  Node keto2:
  HPOM Managed Node status :
  Node durge:
  HPOM Managed Node status :
  Node vcmanage:
  HPOM Managed Node status :
  Node vcmobile:
  Node vishnu:
  HPOM Managed Node status :
  Node ram:
  HPOM Managed Node status :
  Node brizo.iaadom:
  HPOM Managed Node status :
  Node krishna:
  HPOM Managed Node status :
  Node mars1:
  HPOM Managed Node status :
  Node mars2:
  HPOM Managed Node status :
  Node rasas:
  HPOM Managed Node status :
  Node hypons.iaadom:
  HPOM Managed Node status :
  Node nnm-as.iaadom:
  HPOM Managed Node status :
  Node risto3:
  HPOM Managed Node status :
  Node ivrmanage.iaadom:
  HPOM Managed Node status :
  Node mpsair01:
  HPOM Managed Node status :
  Node mpsland01:
  HPOM Managed Node status :
  Node atum2.iaadom:
  HPOM Managed Node status :
  Node vmatum4.iaadom:
  HPOM Managed Node status :
  Node rastas:
  HPOM Managed Node status :
  Node nnm-ls.iaadom:
  HPOM Managed Node status :
  Node rasls:
  HPOM Managed Node status :
  Node ask1:
  HPOM Managed Node status :
  Node ask2:
  HPOM Managed Node status :
  Node grid2:
  HPOM Managed Node status :
  Node grid1:
  HPOM Managed Node status :
  Node ivrdb:
  HPOM Managed Node status :
  Node dafn:
  HPOM Managed Node status :
  Node mist1:
  HPOM Managed Node status :
  Node mist2:
  HPOM Managed Node status :
  Node amun:
  HPOM Managed Node status :
  Node amun1:
  HPOM Managed Node status :
  Node dagon:
  HPOM Managed Node status :
  Node dagon1:
  Node davlin2:
  HPOM Managed Node status :
  Node cet:
  HPOM Managed Node status :
  Node sdns:
  HPOM Managed Node status :
  Node pdns:
  HPOM Managed Node status :
  Node hermes1.iaadom:
  HPOM Managed Node status :
  Node tyr2:
  HPOM Managed Node status :
  Node tyr1:
  HPOM Managed Node status :
  Node new_sspcls:
  Node hapy1:
  Node geb:
  Node saga:
  Node indra:
  Node yama:
  </code></pre>