diff --git a/clite/commands.js b/clite/commands.js
index 61914a6..65a36cc 100644
--- a/clite/commands.js
+++ b/clite/commands.js
@@ -32,6 +32,8 @@ Use view to view the content, eg: view web/about
 clite.commands.load('ls',function(args,env,io) {
 	var dirs = [];
 	var long = false;
+	var stdlib = io.include('stdlib');
+	var stdio = io.include('stdio');
 	function help() {
 		io.write(`
 ls - list directory contents
@@ -71,7 +73,7 @@ Options:
 				}
 			}
 		}else{
-			dirs.push(clite.lib.resolvePath(args[i],false));
+			dirs.push(stdlib.resolvePath(args[i],false));
 		}
 	}
 
@@ -81,21 +83,21 @@ Options:
 	dirs.forEach(function(dir,index) {
 		if (dirs.length > 1)
 			io.write(dir+':');
-		var fd = clite.io.open(dir);
+		var fd = stdio.open(dir);
 		if (!fd) {
 			io.error('cannot open directory: '+dir);
 			return;
 		}
 		if (!fd.node.data.isdir) {
 			writeNodeData(fd.node);
-			clite.io.close(fd);
+			stdio.close(fd);
 			return;
 		}
 		var e;
-		while ((e = clite.io.read(fd)) != null) {
+		while ((e = stdio.read(fd)) != null) {
 			writeNodeData(e);
 		}
-		clite.io.close(fd);
+		stdio.close(fd);
 	});
 
 	return 0;
@@ -105,6 +107,8 @@ clite.commands.load('cat',function(args,env,io) {
 	var files = [];
 	var download = false;
 	var pending = 0;
+	var stdlib = io.include('stdlib');
+	var stdio = io.include('stdio');
 
 	function help() {
 		io.write(`
@@ -133,7 +137,7 @@ Options:
 				}
 			}
 		}else{
-			files.push(clite.lib.resolvePath(args[i],false));
+			files.push(stdlib.resolvePath(args[i],false));
 		}
 	}
 
@@ -145,7 +149,7 @@ Options:
 		if (fd.node.data.isdir || fd.node.data.islink || fd.node.data.isdev) {
 			io.error('not a normal file: '+file);
 		}else{
-			var d = clite.io.readAll(fd);
+			var d = stdio.readAll(fd);
 			if (d != null) {
 				if (download) {
 					var link = document.createElement("a");
@@ -162,13 +166,13 @@ Options:
 			}
 		}
 		pending--;
-		clite.io.close(fd);
+		stdio.close(fd);
 		if (pending <1)
 			io.exit(0);
 	}
 
 	files.forEach(function(file,index) {
-		var fd = clite.io.open(file,fcb);
+		var fd = stdio.open(file,fcb);
 		if (!fd) {
 			io.error('cannot open file: '+file);
 			pending--;
@@ -189,6 +193,8 @@ Options:
 
 clite.commands.load('touch',function(args,env,io) {
 	var file = null;
+	var stdlib = io.include('stdlib');
+	var stdio = io.include('stdio');
 	function help() {
 		io.write(`
 touch - create a new empty file
@@ -215,7 +221,7 @@ Options:
 			if (args[i][0] == '/') {
 				file = args[i];
 			}else{
-				file = clite.lib.resolvePath(args[i],false);
+				file = stdlib.resolvePath(args[i],false);
 			}
 		}else{
 			io.error('unknown argument: '+args[i]);
@@ -227,7 +233,7 @@ Options:
 		return 1;
 	}
 
-	if (!clite.io.creat(file)) {
+	if (!stdio.creat(file)) {
 		io.error('unable to create file: '+file);
 		return 1;
 	}
diff --git a/clite/core.js b/clite/core.js
index 16b7835..bd8cb82 100644
--- a/clite/core.js
+++ b/clite/core.js
@@ -788,6 +788,20 @@ clite.shell = {
 		}
 		clite.io.close(fd);
 	},
+	include:function(name) {
+		switch (name) {
+		case 'stdlib':
+			return clite.lib;
+			break;
+		case 'stdio':
+			return clite.io;
+			break;
+		default:
+			return null;
+			break;
+		}
+		return null;
+	},
 	preprocess:function(txt) {
 		var parts = txt.split('$');
 		var pptxt = '';
@@ -841,6 +855,7 @@ clite.shell = {
 			write:clite.term.writeLine,
 			error:clite.term.writeLine,
 			exit:clite.shell.exit,	// equivalent to C's exit(), needed by asynchronous programs
+			include:clite.shell.include,	// include libraries, allows them to be used in a program
 			istty:{
 				stdin:true,		// false if stdin (read) is not clite.shell.readLine
 				stdout:true		// false if stdout (write) is not clite.term.writeLine