diff --git a/deps.ts b/deps.ts
index 3259efe..645386f 100644
--- a/deps.ts
+++ b/deps.ts
@@ -1,32 +1,7 @@
-export {
-  basename,
-  dirname,
-  extname,
-  fromFileUrl,
-  isAbsolute,
-  join,
-  normalize,
-  relative,
-  resolve,
-  SEP,
-  SEP_PATTERN,
-  toFileUrl,
-  toNamespacedPath,
-} from "https://deno.land/std@0.93.0/path/mod.ts";
+export * as path from "https://deno.land/std@0.93.0/path/mod.ts";
+export * as io from "https://deno.land/std@0.93.0/io/mod.ts";
+export * as fs from "https://deno.land/std@0.93.0/fs/mod.ts";
+export * as log from "https://deno.land/std@0.93.0/log/mod.ts";
+export * as flags from "https://deno.land/std@0.93.0/flags/mod.ts";
 export { colors } from "https://deno.land/x/cliffy@v0.18.2/ansi/colors.ts";
-export {
-  iter,
-  iterSync,
-  readAll,
-  readAllSync,
-  writeAll,
-  writeAllSync,
-} from "https://deno.land/std@0.93.0/io/util.ts";
-export { Buffer } from "https://deno.land/std@0.93.0/io/buffer.ts";
-export { readLines } from "https://deno.land/std@0.93.0/io/bufio.ts";
-export { default as escapeStr } from "https://esm.sh/shq@1.0.2";
-export { parse as parseFlags } from "https://deno.land/std@0.93.0/flags/mod.ts";
-export type {
-  ArgParsingOptions,
-  Args,
-} from "https://deno.land/std@0.93.0/flags/mod.ts";
+export { default as shq } from "https://esm.sh/shq@1.0.2";
diff --git a/dzx.ts b/dzx.ts
index de9ca6e..7a98a3a 100755
--- a/dzx.ts
+++ b/dzx.ts
@@ -1,88 +1,34 @@
 /// <reference path="./types.d.ts" />
-
+import { $, io, path } from "./mod.ts";
 import { error } from "./src/_utils.ts";
-import {
-  $,
-  basename,
-  Buffer,
-  cd,
-  dirname,
-  extname,
-  fromFileUrl,
-  isAbsolute,
-  iter,
-  iterSync,
-  join,
-  normalize,
-  parseFlags,
-  quote,
-  readAll,
-  readAllSync,
-  readLines,
-  relative,
-  resolve,
-  toFileUrl,
-  toNamespacedPath,
-  writeAll,
-  writeAllSync,
-} from "./mod.ts";
-
-// dzx
-window.$ = $;
-window.cd = cd;
-
-// std/io
-window.Buffer = Buffer;
-window.iter = iter;
-window.iterSync = iterSync;
-window.quote = quote;
-window.readAll = readAll;
-window.readAllSync = readAllSync;
-window.readLines = readLines;
-window.writeAll = writeAll;
-window.writeAllSync = writeAllSync;
-
-// std/path
-window.basename = basename;
-window.dirname = dirname;
-window.extname = extname;
-window.fromFileUrl = fromFileUrl;
-window.isAbsolute = isAbsolute;
-window.join = join;
-window.normalize = normalize;
-window.relative = relative;
-window.resolve = resolve;
-window.toFileUrl = toFileUrl;
-window.toNamespacedPath = toNamespacedPath;
-
-window.parseFlags = parseFlags;
-
-const script: string | undefined = Deno.args[0];
 
-try {
-  if (!script) {
-    if (!Deno.isatty(Deno.stdin.rid)) {
-      const data = new TextDecoder().decode(await readAll(Deno.stdin));
-      if (data) {
-        await import(
-          `data:application/typescript,${encodeURIComponent(data)}`
-        );
+if (import.meta.main) {
+  const script: string | undefined = Deno.args[0];
+  try {
+    if (!script) {
+      if (!Deno.isatty(Deno.stdin.rid)) {
+        const data = new TextDecoder().decode(await io.readAll(Deno.stdin));
+        if (data) {
+          await import(
+            `data:application/typescript,${encodeURIComponent(data)}`
+          );
+        } else {
+          error(`usage: dzx <script>`, 2);
+        }
       } else {
-        error(`usage: dzx <script>`, 2);
+        error(`usage: dzx <script>`);
       }
+    } else if (
+      script.startsWith("http://") || script.startsWith("https://") ||
+      script.startsWith("file://")
+    ) {
+      await import(script);
+    } else if (script) {
+      await import("file://" + path.join($.cwd, script));
     } else {
       error(`usage: dzx <script>`);
     }
-  } else if (
-    script.startsWith("http://") || script.startsWith("https://") ||
-    script.startsWith("file://")
-  ) {
-    await import(script);
-  } else if (script) {
-    await import("file://" + join($.cwd, script));
-  } else {
-    error(`usage: dzx <script>`);
+  } catch (err) {
+    error(err);
   }
-} catch (err) {
-  error(err);
 }
diff --git a/mod.ts b/mod.ts
index 52ea41c..4c75682 100644
--- a/mod.ts
+++ b/mod.ts
@@ -1,36 +1,13 @@
-import {
-  basename,
-  Buffer,
-  colors,
-  dirname,
-  escapeStr,
-  extname,
-  fromFileUrl,
-  isAbsolute,
-  iter,
-  iterSync,
-  join,
-  normalize,
-  readAll,
-  readAllSync,
-  readLines,
-  relative,
-  resolve,
-  toFileUrl,
-  toNamespacedPath,
-  writeAll,
-  writeAllSync,
-} from "./deps.ts";
+import { colors, flags, fs, io, log, path, shq } from "./deps.ts";
 import { cd } from "./src/cd.ts";
 import { exec } from "./src/exec.ts";
 import { quote } from "./src/quote.ts";
-import { parseFlags } from "./src/parse_flags.ts";
 
 export type $ = typeof exec & typeof colors & {
   verbose: boolean;
   cwd: string;
   shell: string;
-  quote: typeof escapeStr;
+  quote: typeof shq;
   throwErors: boolean;
 };
 
@@ -42,30 +19,19 @@ $._stack = [];
 $.shell = "/bin/sh";
 $.verbose = false;
 $.cwd = Deno.cwd();
-$.quote = escapeStr;
+$.quote = shq;
 $.throwErors = false;
 
-export {
-  basename,
-  Buffer,
-  cd,
-  dirname,
-  extname,
-  fromFileUrl,
-  isAbsolute,
-  iter,
-  iterSync,
-  join,
-  normalize,
-  parseFlags,
-  quote,
-  readAll,
-  readAllSync,
-  readLines,
-  relative,
-  resolve,
-  toFileUrl,
-  toNamespacedPath,
-  writeAll,
-  writeAllSync,
-};
+// dzx
+window.$ = $;
+window.cd = cd;
+window.quote = quote;
+
+// x
+window.path = path;
+window.io = io;
+window.fs = fs;
+window.log = log;
+window.flags = flags;
+
+export { cd, flags, fs, io, log, path, quote };
diff --git a/src/exec.ts b/src/exec.ts
index 3d502dd..a00ec71 100644
--- a/src/exec.ts
+++ b/src/exec.ts
@@ -1,4 +1,3 @@
-import { iter } from "../deps.ts";
 import { ProcessError } from "./process_error.ts";
 import { ProcessOutput } from "./process_output.ts";
 import { quote } from "./quote.ts";
@@ -51,7 +50,7 @@ async function read(
   reader: Deno.Reader,
   ...results: Array<Array<string>>
 ) {
-  for await (const chunk of iter(reader)) {
+  for await (const chunk of io.iter(reader)) {
     const str = new TextDecoder().decode(chunk);
     for (const result of results) {
       result.push(str);
diff --git a/src/parse_flags.ts b/src/parse_flags.ts
deleted file mode 100644
index 7b48ce6..0000000
--- a/src/parse_flags.ts
+++ /dev/null
@@ -1,11 +0,0 @@
-import { ArgParsingOptions, Args, parseFlags as _parseFlags } from "../deps.ts";
-
-export function parseFlags(
-  args: Array<string>,
-  options?: ArgParsingOptions,
-): Args {
-  if ($.verbose) {
-    console.log($.brightMagenta(">_ %s"), args.join(" "));
-  }
-  return _parseFlags(args, options);
-}
diff --git a/types.d.ts b/types.d.ts
index 2b0af62..45b6104 100755
--- a/types.d.ts
+++ b/types.d.ts
@@ -1,32 +1,13 @@
 import type {
   $,
   cd as _cd,
-  parseFlags as _parseFlags,
+  flags as _flags,
+  fs as _fs,
+  io as _io,
+  log as _log,
+  path as _path,
   quote as _quote,
 } from "./mod.ts";
-import type {
-  ArgParsingOptions as _ArgParsingOptions,
-  Args as _Args,
-  basename as _basename,
-  Buffer as _Buffer,
-  dirname as _dirname,
-  extname as _extname,
-  fromFileUrl as _fromFileUrl,
-  isAbsolute as _isAbsolute,
-  iter as _iter,
-  iterSync as _iterSync,
-  join as _join,
-  normalize as _normalize,
-  readAll as _readAll,
-  readAllSync as _readAllSync,
-  readLines as _readLines,
-  relative as _relative,
-  resolve as _resolve,
-  toFileUrl as _toFileUrl,
-  toNamespacedPath as _toNamespacedPath,
-  writeAll as _writeAll,
-  writeAllSync as _writeAllSync,
-} from "./deps.ts";
 
 declare global {
   // dzx
@@ -34,33 +15,12 @@ declare global {
   const cd: typeof _cd;
   const quote: typeof _quote;
 
-  // std/io
-  const Buffer: typeof _Buffer;
-  const iter: typeof _iter;
-  const iterSync: typeof _iterSync;
-  const readAll: typeof _readAll;
-  const readAllSync: typeof _readAllSync;
-  const readLines: typeof _readLines;
-  const writeAll: typeof _writeAll;
-  const writeAllSync: typeof _writeAllSync;
-
-  // std/path
-  const basename: typeof _basename;
-  const dirname: typeof _dirname;
-  const extname: typeof _extname;
-  const fromFileUrl: typeof _fromFileUrl;
-  const isAbsolute: typeof _isAbsolute;
-  const join: typeof _join;
-  const normalize: typeof _normalize;
-  const relative: typeof _relative;
-  const resolve: typeof _resolve;
-  const toFileUrl: typeof _toFileUrl;
-  const toNamespacedPath: typeof _toNamespacedPath;
-
-  // std/flags
-  const parseFlags: typeof _parseFlags;
-  type ArgParsingOptions = _ArgParsingOptions;
-  type Args = _Args;
+  // x
+  const path: typeof _path;
+  const io: typeof _io;
+  const fs: typeof _fs;
+  const log: typeof _log;
+  const flags: typeof _flags;
 
   interface Window {
     // dzx
@@ -68,30 +28,11 @@ declare global {
     cd: typeof _cd;
     quote: typeof _quote;
 
-    // std/io
-    Buffer: typeof _Buffer;
-    iter: typeof _iter;
-    iterSync: typeof _iterSync;
-    readAll: typeof _readAll;
-    readAllSync: typeof _readAllSync;
-    readLines: typeof _readLines;
-    writeAll: typeof _writeAll;
-    writeAllSync: typeof _writeAllSync;
-
-    // std/path
-    basename: typeof _basename;
-    dirname: typeof _dirname;
-    extname: typeof _extname;
-    fromFileUrl: typeof _fromFileUrl;
-    isAbsolute: typeof _isAbsolute;
-    join: typeof _join;
-    normalize: typeof _normalize;
-    relative: typeof _relative;
-    resolve: typeof _resolve;
-    toFileUrl: typeof _toFileUrl;
-    toNamespacedPath: typeof _toNamespacedPath;
-
-    // std/flags
-    parseFlags: typeof _parseFlags;
+    // x
+    path: typeof _path;
+    io: typeof _io;
+    fs: typeof _fs;
+    log: typeof _log;
+    flags: typeof _flags;
   }
 }