diff --git a/nbs/migrating.ipynb b/nbs/migrating.ipynb
index f8c5e60c3..28c16a738 100644
--- a/nbs/migrating.ipynb
+++ b/nbs/migrating.ipynb
@@ -138,13 +138,11 @@
     "A number of directives have changed names. We'll use `perl` to fix them. Run these lines in the root of your repo:\n",
     "\n",
     "```bash\n",
-    "[[ $SHELL = *bash ]] && shopt -s globstar\n",
-    "\n",
-    "perl -pi -e 's/#\\|\\s*hide_input/#| echo: false/' **/*.ipynb\n",
-    "perl -pi -e 's/#\\|\\s*hide_output/#| output: false/' **/*.ipynb\n",
-    "perl -pi -e 's/#\\|\\s*skip/#| eval: false/' **/*.ipynb\n",
-    "perl -pi -e 's/from nbdev.export import notebook2script/from nbdev import nbdev_export/' **/*.ipynb\n",
-    "perl -pi -e 's/notebook2script/nbdev_export/' **/*.ipynb\n",
+    "find . -name '*.ipynb' -exec perl -pi -e 's/#\\|\\s*hide_input/#| echo: false/' {} +\n",
+    "find . -name '*.ipynb' -exec perl -pi -e 's/#\\|\\s*hide_output/#| output: false/' {} +\n",
+    "find . -name '*.ipynb' -exec perl -pi -e 's/#\\|\\s*skip/#| eval: false/' {} +\n",
+    "find . -name '*.ipynb' -exec perl -pi -e 's/from nbdev.export import notebook2script/from nbdev import nbdev_export/' {} +\n",
+    "find . -name '*.ipynb' -exec perl -pi -e 's/notebook2script/nbdev_export/' {} +\n",
     "```\n",
     "\n",
     "These change the following directives to use functionality built into Quarto:\n",