Add new deletetiddlers command

core/language/en-GB/Help/deletetiddlers.tid

@@ -0,0 +1,8 @@
+title: $:/language/Help/deletetiddlers
+description: Deletes a group of tiddlers
+
+Deletes a group of tiddlers identified by a filter.
+
+```
+--deletetiddlers <filter>
+```

core/modules/commands/deletetiddlers.js

@@ -0,0 +1,42 @@
+/*\
+title: $:/core/modules/commands/deletetiddlers.js
+type: application/javascript
+module-type: command
+
+Command to delete tiddlers
+
+\*/
+(function(){
+
+/*jslint node: true, browser: true */
+/*global $tw: false */
+"use strict";
+
+exports.info = {
+	name: "deletetiddlers",
+	synchronous: true
+};
+
+var Command = function(params,commander,callback) {
+	this.params = params;
+	this.commander = commander;
+	this.callback = callback;
+};
+
+Command.prototype.execute = function() {
+	if(this.params.length < 1) {
+		return "Missing filter";
+	}
+	var self = this,
+		wiki = this.commander.wiki,
+		filter = this.params[0],
+		tiddlers = wiki.filterTiddlers(filter);
+	$tw.utils.each(tiddlers,function(title) {
+		wiki.deleteTiddler(title);
+	});
+	return null;
+};
+
+exports.Command = Command;
+
+})();

editions/tw5.com/tiddlers/commands/DeleteTiddlersCommand.tid

@@ -0,0 +1,7 @@
+title: DeleteTiddlersCommand
+tags: Commands
+created: 20190530155418184
+modified: 20190530155418184
+caption: deletetiddlers
+
+{{$:/language/Help/deletetiddlers}}