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+# todo
+
+- [x] environment variables
+- [x] custom prompts
+- [x] minimal current directory
+- [ ] quotes
+- [-] handle ~
+- [ ] dynamically allocate cwd in cd builtin command
+- [-] all of posixs
+  - [ ] aliases
+  - [x] increase the SHLVL var
+  - [x] update pwd
+  - [ ] pipes |
+  - [ ] redirections > <
+  - [ ] append >>
+  - [ ] heredoc
+- [ ] rcfile
+  - [ ] rcfile in homedir