diff --git a/common/content/buffer.js b/common/content/buffer.js
index 0ffe198e..449eacb8 100644
--- a/common/content/buffer.js
+++ b/common/content/buffer.js
@@ -976,9 +976,11 @@ const Buffer = Module("buffer", {
      */
     viewSourceExternally: Class("viewSourceExternally",
         XPCOM([Ci.nsIWebProgressListener, Ci.nsISupportsWeakReference]), {
-        init: function (doc) {
+        init: function (doc, callback) {
             let url = isString(doc) ? doc : doc.location.href;
             let charset = isString(doc) ? null : doc.characterSet;
+            this.callback = callback ||
+                function (file) editor.editFileExternally(file.path);
 
             let webNav = window.getWebNavigation();
             try {
@@ -994,7 +996,7 @@ const Buffer = Module("buffer", {
 
             let uri = util.newURI(url, charset);
             if (uri.scheme == "file")
-                editor.editFileExternally(uri.QueryInterface(Ci.nsIFileURL).file.path);
+                this.callback(File(uri.QueryInterface(Ci.nsIFileURL).file));
             else {
                 if (descriptor) {
                     // we'll use nsIWebPageDescriptor to get the source because it may
@@ -1035,7 +1037,7 @@ const Buffer = Module("buffer", {
                         this.file = io.createTempFile();
                         this.file.write(this.docShell.document.body.textContent);
                     }
-                    editor.editFileExternally(this.file.path);
+                    this.callback(this.file);
                     this.file.remove(false);
                 }
                 finally {
@@ -1318,7 +1320,25 @@ const Buffer = Module("buffer", {
                 let chosenData = null;
                 let filename = args[0];
 
+                let command = commandline.command;
                 if (filename) {
+                    if (filename[0] == "!")
+                        return buffer.viewSourceExternally(buffer.focusedFrame.document,
+                            function (file) {
+                                let output = io.system(filename.substr(1), file);
+                                commandline.command = command;
+                                commandline.commandOutput(<span highlight="CmdOutput">{output}</span>);
+                            });
+
+                    if (/^>>/.test(filename)) {
+                        let file = io.File(filename.replace(/^>>\s*/, ""));
+                        dactyl.assert(file.exists() && file.isWritable(), file.path.quote() + ": E212: Can't open file for writing");
+                        return buffer.viewSourceExternally(buffer.focusedFrame.document,
+                            function (tmpFile) {
+                                file.write(tmpFile.read(), ">>");
+                            });
+                    }
+
                     let file = io.File(filename);
 
                     dactyl.assert(!file.exists() || args.bang,
@@ -1347,7 +1367,14 @@ const Buffer = Module("buffer", {
             {
                 argCount: "?",
                 bang: true,
-                completer: function (context) completion.file(context)
+                completer: function (context) {
+                    if (context.filter[0] == "!")
+                        return;
+                    if (/^>>/.test(context.filter))
+                        context.advance(/^>>\s*/.exec(context.filter)[0].length);
+                    return completion.file(context)
+                },
+                literal: 0
             });
 
         commands.add(["st[op]"],
diff --git a/common/content/io.js b/common/content/io.js
index 0402c395..35b8f763 100644
--- a/common/content/io.js
+++ b/common/content/io.js
@@ -433,7 +433,9 @@ lookup:
         function escape(str) '"' + str.replace(/[\\"$]/g, "\\$&") + '"';
 
         return this.withTempFiles(function (stdin, stdout, cmd) {
-            if (input)
+            if (input instanceof File)
+                stdin = input;
+            else if (input)
                 stdin.write(input);
 
             // TODO: implement 'shellredir'
diff --git a/common/locale/en-US/browsing.xml b/common/locale/en-US/browsing.xml
index db139c85..77c40487 100644
--- a/common/locale/en-US/browsing.xml
+++ b/common/locale/en-US/browsing.xml
@@ -415,6 +415,26 @@ want to bypass &dactyl.appName;'s key handling and pass keys directly to
     </description>
 </item>
 
+<item>
+    <spec>:write >> <a>file</a></spec>
+    <description>
+        <p>
+            Appends the current web page to the file <a>file</a>. The given
+            file must already exist.
+        </p>
+    </description>
+</item>
+
+<item>
+    <spec>:write !<a>cmd</a></spec>
+    <description>
+        <p>
+            Writes the current web page to <a>cmd</a> and prints the command's
+            output.
+        </p>
+    </description>
+</item>
+
 <h2 tag="quitting save-session">Quitting</h2>
 
 <item>
diff --git a/pentadactyl/NEWS b/pentadactyl/NEWS
index bb041635..70151b6a 100644
--- a/pentadactyl/NEWS
+++ b/pentadactyl/NEWS
@@ -57,14 +57,15 @@
     * Added 'banghist' option.
     * Added BookmarkChange, BookmarkRemove autocommands.
     * Added -keyword, -tags, -title to :delbmarks.
+    * Added "passwords" and "venkman" dialogs to :dialog.
     * Added 'hintkeys' option.
+    * Added "transliterated" option to 'hintmatching'.
     * Replaced 'focuscontent' with 'strictfocus'.
     * Added 'wildanchor' option.
-    * Added "transliterated" option to 'hintmatching'.
     * Added -javascript option to :abbrev and :map.
     * Added several new options to :map.
     * Added -agent flag to :style.
-    * Added "passwords" and "venkman" dialogs to :dialog.
+    * Added :write !cmd and :write >>file
     * Removed the :source line at the end of files generated by
       :mkpentadactylrc.
     * gf now toggles between source and content view.