<html>   
<head>    
<script type="text/javascript">    
document.write("Validating a Text Box<BR>");    
function validate_required(field,alerttxt)    
{    
with (field)    
  {    
  if (value==null || value=="")    
    {    
    alert(alerttxt);    
    return false;    
    }    
  else    
    {    
    return true;    
    }  }}    
function validate_form(thisform)    
{    
with (thisform)    
  {    
  if (validate_required(email,"Email must be filled out!")==false)    
  {    
  email.focus();    
  return false;}    
  }    
}    
</script>    
</head>    
<body>    
<form action="submit.htm" onsubmit="return validate_form(this)" method="post">    
Email: <input type="text" name="email" size="30">    
<input type="submit" value="Submit">    
</form>    
</body>    
</html>
In this post, we are going to see how to install ns-3.36.1 in Ubuntu 22.04. You can follow the video for complete details Tools used in this simulation: NS3 version ns-3.36.1  OS Used: Ubuntu 22.04 LTS Installation of NS3 (ns-3.36.1) There are some changes in the ns3 installation procedure and the dependencies. So open a terminal and issue the following commands Step 1:  Prerequisites $ sudo apt update In the following packages, all the required dependencies are taken care and you can install all these packages for the complete use of ns3. $ sudo apt install g++ python3 python3-dev pkg-config sqlite3 cmake python3-setuptools git qtbase5-dev qtchooser qt5-qmake qtbase5-dev-tools gir1.2-goocanvas-2.0 python3-gi python3-gi-cairo python3-pygraphviz gir1.2-gtk-3.0 ipython3 openmpi-bin openmpi-common openmpi-doc libopenmpi-dev autoconf cvs bzr unrar gsl-bin libgsl-dev libgslcblas0 wireshark tcpdump sqlite sqlite3 libsqlite3-dev  libxml2 libxml2-dev libc6-dev libc6-dev-i386 libc...
 
hi sir how can i get your email pleas?
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