title: adding permissions with visudo to a linux user for using wireshark
body: <p>Im trying to set permissions for a user named 'invitado', jus for some binaries: wireshark, tcpdump and traceroute. Iv done according to the sudoers syntax which i think is the following:</p>
  
  <pre><code># /etc/sudoers
  #
  # This file MUST be edited with the 'visudo' command as root.
  #
  # See the man page for details on how to write a sudoers file.
  #
  
  Defaults    env_reset
  
  # Host alias specification
  
  # User alias specification
  
  # Cmnd alias specification
  
  # User privilege specification
  root    ALL=(ALL) ALL
  ldac    ALL=(ALL) NOPASSWD: ALL
  
  # Allow members of group sudo to execute any command
  # (Note that later entries override this, so you might need to move
  # it further down)
  %sudo ALL=(ALL) ALL
  #
  #includedir /etc/sudoers.d
  
  #Permiso de SUDO a guest de wireshark
  invitado ALL=NOPASSWD : /usr/bin/aptitude/usr/bin/X11/wireshark
  invitado ALL=NOPASSWD : /usr/bin/wireshark
  invitado ALL=NOPASSWD : /usr/sbin/traceroute
  invitado ALL=NOPASSWD : /usr/sbin/tcpdump
  </code></pre>
  
  <p>However, i keep obtaining the same visudo error output:</p>
  
  <pre><code>&gt;&gt;&gt; /etc/sudoers: syntax error near line 30 &lt;&lt;&lt;
  What now? Options are:
    (e)dit sudoers file again
    e(x)it without saving changes to sudoers file
    (Q)uit and save changes to sudoers file (DANGER!)
  </code></pre>
  
  <p>Any suggestions??? thanks in advance!</p>