diff --git a/Sharp.Augeas.Test/AugeasTests.cs b/Sharp.Augeas.Test/AugeasTests.cs
index 03efea3..c87a24a 100644
--- a/Sharp.Augeas.Test/AugeasTests.cs
+++ b/Sharp.Augeas.Test/AugeasTests.cs
@@ -10,6 +10,10 @@ public class AugeasTests
         var rootDir = Environment.CurrentDirectory + "/root";
         var lensDir = Environment.CurrentDirectory + "/lens";
         _augeas = new Augeas(new AugSettings(rootDir, lensDir));
+        _augeas.LoadFile("/etc/apache2/sites-available/00-ci.codeliturgy.com.conf");
+        _augeas.LoadFile("/etc/apache2/sites-available/02-codeliturgy.com.conf");
+        
+        // Load a bunch of files
     }
 
     [Test]
@@ -19,8 +23,7 @@ public class AugeasTests
         _augeas.PrintVirtualHostTree(virtualHostConfig);
         Assert.Pass();
     }
-    
-    
+
     [Test]
     public void NoExceptionThrownWhenPrintingPreview()
     {
@@ -29,27 +32,34 @@ public class AugeasTests
          Assert.Pass();
 
     }
-     
-    
+
     [Test]
     public void GetPreviewReturnsValid()
     {
-         _ = _augeas.LoadFile("/etc/apache2/sites-available/00-ci.codeliturgy.com.conf");
-         var preview = _augeas.GetPreview("/files/etc/apache2/sites-available/00-ci.codeliturgy.com.conf/*");
+    
+         var preview = _augeas.GetPreview("/files/etc/apache2/sites-available/00-ci.codeliturgy.com.conf");
          var stringInvalid = string.IsNullOrEmpty(preview);
          Assert.That(!stringInvalid);
 
     }
     
     
-        
+    
     [Test]
-    public void GetTreeVirtualHostReturnsDictionaryWithKeys()
+    public void MatchReturnsTwoSites()
     {
-        var virtualHostConfig = "/etc/apache2/sites-available/00-ci.codeliturgy.com.conf";
-         var tree = _augeas.GetVirtualHostTree(virtualHostConfig);
-         Assert.That(tree.Count > 0);
+        var sites = _augeas.Match("/files/etc/apache2/sites-available/*");
+        Assert.That(sites.Length == 2);
     }
     
     
+
+    [Test]
+    public void GetTreeVirtualHostReturnsDictionaryWithKeys()
+    {
+        var path = "/etc/apache2/sites-available/00-ci.codeliturgy.com.conf";
+        var tree = _augeas.GetVirtualHostTree(path);
+         Assert.That(tree.Count > 0);
+    }
+
 }
\ No newline at end of file
diff --git a/Sharp.Augeas/Augeas/Augeas.cs b/Sharp.Augeas/Augeas/Augeas.cs
index 8e1a435..7eff32f 100644
--- a/Sharp.Augeas/Augeas/Augeas.cs
+++ b/Sharp.Augeas/Augeas/Augeas.cs
@@ -6,9 +6,13 @@ namespace Sharp.Augeas
     /// <summary>
     ///  Augeas Core containing the settings of this instance.
     /// </summary>
-    public sealed class Augeas
+    public sealed unsafe class Augeas
     {
+        
         #region Flags
+        /// <summary>
+        /// 
+        /// </summary>
         public static int NONE = 0;
         public static int SAVE_BACKUP = (1 << 0);
         public static int SAVE_NEWFILE = (1 << 1);
@@ -20,6 +24,7 @@ namespace Sharp.Augeas
         public static int NO_MODL_AUTOLOAD = (1 << 6);
         public static int AUG_ENABLE_SPAN = (1 << 7);
         #endregion Flags
+        
         private readonly IntPtr _augeas;
 
         private HashSet<string> _loadedFiles = new();
@@ -81,8 +86,7 @@ namespace Sharp.Augeas
         /// <summary>
         /// Prints a preview of the desired segment in <see cref="matchPath"/>
         /// </summary>
-        /// <param name="matchPath">Augeas path to filter out the configuration</param>
-        /// <param name="filePath">The actual configuration file path</param>
+        /// <param name="matchPath">Augeas path.</param>
         public void PrintPreview(string matchPath)
         {
             print_preview(_augeas, matchPath);
@@ -92,21 +96,13 @@ namespace Sharp.Augeas
         /// Get the exact value of the matchPath.
         /// Returns a empty string if no match is valid.
         /// </summary>
-        /// <param name="matchPath">Augeas path to filter out the configuration.</param>
+        /// <param name="matchPath">Augeas path.</param>
         public string GetNode(string matchPath)
         {
             var res = get_node(_augeas, matchPath);
             return res != IntPtr.Zero ? Marshal.PtrToStringAnsi(res) : string.Empty;
         }
 
-        
-        /// <summary>
-        /// Loads a file.
-        /// </summary>
-        /// <param name="configurationFilePath"></param>
-        ///
-
-
         /// <summary>
         /// Binding for aug_load_file 
         /// </summary>
@@ -147,7 +143,7 @@ namespace Sharp.Augeas
         /// <summary>
         /// Returns the tree given the augeas configuration path.
         /// </summary>
-        /// <param name="matchPath">configuration path.</param>
+        /// <param name="matchPath">Configuration path.</param>
         /// <returns>Dictionary with the Tree</returns>
         private Dictionary<string,string> GetTree(string matchPath)
         {
@@ -166,13 +162,51 @@ namespace Sharp.Augeas
             FreeString(raw);
             return result;
         }
-               
+
+        /// <summary>
+        /// Sets a value of exactly one node.
+        /// </summary>
+        /// <param name="matchPath">Configuration path.</param>
+        /// <param name="value">The value to set.</param>
+        /// <returns>True if the value was set.</returns>
+        public bool SetNode(string matchPath, string value)
+        {
+            bool success = set_node(_augeas, matchPath, value);
+            return success;
+        }
+
+        /// <summary>
+        /// Removes a node from the tree given the <see cref="matchPath"/>
+        /// </summary>
+        /// <param name="matchPath">Configuration path.</param>
+        /// <returns>Removed nodes count.</returns>
+        public int RemoveNode(string matchPath)
+        {
+            int removedCount = rm_node(_augeas, matchPath);
+            return removedCount;
+        }
+        
+
+
+        /// <summary>
+        /// Write all pending changes to disk. Only files that had any changes made to them are written.
+        /// If AUG_SAVE_NEWFILE is set in the FLAGS passed to AUG_INIT, create changed files as new files with the extension ".augnew", and leave the
+        /// original file unmodified. Otherwise, if AUG_SAVE_BACKUP is set in the FLAGS passed to the constructor,
+        /// move the original file to a new file with extension ".augsave".
+        /// If neither of these flags is set, overwrite the original file
+        /// </summary>
+        /// <returns> True on success. Only files that had any changes made to them are written.</returns>
+        public bool Save()
+        {
+            bool saved = save(_augeas);
+            return saved;
+        }
 
         /// <summary>
         /// Gets a preview of the configuration segment of <see cref="matchPath"/>.
         /// The file must be loaded first.
         /// </summary>
-        /// <param name="matchPath">Augeas path of the configuration</param>
+        /// <param name="matchPath">Augeas path.</param>
         /// <returns></returns>
         public string GetPreview(string matchPath)
         {
@@ -182,9 +216,45 @@ namespace Sharp.Augeas
             return sb;
         }
         
-        #endregion
+        #endregion 
+        
+        
+        /// <summary>
+        /// Matches of the path expression PATH in AUG.
+        /// </summary>
+        /// <param name="matchPath">Augeas path.</param>
+        /// <returns></returns>
+        public string[] Match (string matchPath)
+        {
+            sbyte** result = null;
+            var count = match(_augeas, matchPath, &result);
+            var managedArray = GetStringsAndFreeAllocations(count, result);
+            result = null;
+            return managedArray;
+        }
 
+        private string[] GetStringsAndFreeAllocations(int count, sbyte** list)
+        {
+            var result = new string[count];
 
+            if (count <= 0) return Array.Empty<string>();
+
+            for (var i = 0; i < count; i++)
+            {
+                result[i] = Marshal.PtrToStringUTF8((IntPtr)list[i]);
+                Marshal.FreeCoTaskMem((IntPtr)list[i]);
+            }
+            
+            return result;
+        }
+
+        
+
+        
+        /// <summary>
+        /// Given a <see cref="apacheSitePath"/>, prints the Virtual Host tree. 
+        /// </summary>
+        /// <param name="apacheSitePath">Apache configuration file.</param>
         public void PrintVirtualHostTree(string apacheSitePath)
         {
             LoadFile(apacheSitePath);
@@ -192,6 +262,11 @@ namespace Sharp.Augeas
             PrintTree(virtualHostTree);
         }
         
+        /// <summary>
+        /// Given a <see cref="apacheSitePath"/>, gets a virtual host tree.
+        /// </summary>
+        /// <param name="apacheSitePath">Apache configuration file.</param>
+        /// <returns></returns>
         public Dictionary<string,string> GetVirtualHostTree(string apacheSitePath)
         {
             LoadFile(apacheSitePath);
@@ -200,10 +275,14 @@ namespace Sharp.Augeas
         }
         
 
-        void PrintVirtualHostProxyTree(string configFilePath)
+        /// <summary>
+        /// Given a <see cref="apacheSitePath"/>, prints the proxy segment of the configuration.
+        /// </summary>
+        /// <param name="configFilePath"></param>
+        void PrintVirtualHostProxyTree(string apacheSitePath)
         {
-            LoadFile(configFilePath);
-            string virtualHostProxyMatchPath = $"/files{configFilePath}/VirtualHost/Proxy/*";
+            LoadFile(apacheSitePath);
+            string virtualHostProxyMatchPath = $"/files{apacheSitePath}/VirtualHost/Proxy/*";
             PrintTree(virtualHostProxyMatchPath);
         }
 
diff --git a/Sharp.Augeas/Augeas/AugeasExtern.cs b/Sharp.Augeas/Augeas/AugeasExtern.cs
index ec1c89b..cbe3b42 100644
--- a/Sharp.Augeas/Augeas/AugeasExtern.cs
+++ b/Sharp.Augeas/Augeas/AugeasExtern.cs
@@ -7,7 +7,7 @@ using Sharp.Augeas.Test;
 namespace Sharp.Augeas
 {
     [SuppressUnmanagedCodeSecurity]
-    public static unsafe partial class AugeasExtern
+    public static unsafe class AugeasExtern
     {
         [DllImport(_libName)]
         public static extern IntPtr init_aug(AugSettings settings, int flags);
@@ -40,8 +40,30 @@ namespace Sharp.Augeas
 
         [DllImport(_libName)]
         public static extern IntPtr get_node(IntPtr augeas, [MarshalAs(UnmanagedType.LPStr)] string matchPath);
-
-        [DllImport(_libName)] public static extern bool load_file(IntPtr augeas, [MarshalAs(UnmanagedType.LPStr)] string filePath);
         
+        [DllImport(_libName)]
+        public static extern int insert_node(IntPtr augeas, [MarshalAs(UnmanagedType.LPStr)] string matchPath, [MarshalAs(UnmanagedType.LPStr)] string label, int before);
+
+        
+        [DllImport(_libName)]
+        public static extern bool set_node(IntPtr augeas, [MarshalAs(UnmanagedType.LPStr)] string matchPath, [MarshalAs(UnmanagedType.LPStr)] string value);
+        
+        
+        [DllImport(_libName)]
+        public static extern int rm_node(IntPtr augeas, [MarshalAs(UnmanagedType.LPStr)] string matchPath);
+                
+        
+        [DllImport(_libName)]
+        public static extern bool save(IntPtr augeas);
+        
+        
+        [DllImport(_libName)] 
+        public static extern bool load_file(IntPtr augeas, [MarshalAs(UnmanagedType.LPStr)] string filePath);
+       
+        
+        [DllImport(_libName)]
+        internal static extern int match(IntPtr augeas, [MarshalAs(UnmanagedType.LPStr)] string matchPath, sbyte*** matches);
+        
+
     }
 }
\ No newline at end of file