diff --git a/lua/autocmd.lua b/lua/autocmd.lua
index e3afaf9..cc00167 100644
--- a/lua/autocmd.lua
+++ b/lua/autocmd.lua
@@ -83,4 +83,8 @@ vim.api.nvim_create_user_command('HeaderGuard', function()
   print('Header guard inserted: ' .. guard)
 end, { desc = 'Insert header guard for current .h file' })
 
+vim.api.nvim_create_user_command('ExpandVars', function()
+  vim.cmd [[silent! %s/\$\([A-Za-z_][A-Za-z0-9_]*\)/\${\1}/g]]
+end, { desc = 'Expand all bash vars' })
+
 -- vim: ts=2 sts=2 sw=2 et