- [x] `:`
- [x] `alias`
- [ ] `alloc`
- [ ] `astprint`
- [x] `builtins`
- [x] `cd`/`chdir`
- [ ] `date`
- [ ] `echo`
- [x] `env`/`setenv`/`unsetenv` (`env` à completer)
- [ ] `export`
- [ ] `eval`/`exec`
- [x] `exit`
- [ ] `kill`
- [ ] `limit`
- [x] `printenv`
- [x] `pushd`/`popd`
- [ ] `printf`
- [x] `repeat`
- [ ] `source`/`.`
- [ ] `termname`
- [ ] `time`
- [ ] `trap`
- [ ] `wc`
- [x] `which`/`where`
- [x] `yes`

- [x] pipes
- [x] redirections
- [ ] line editing (move, del, multi-line)
- [ ] input shortcut (^A,^E,^R,^V,^F,^B,...)
- [ ] foreground/background jobs (`&`), (btln `fg`, `bg`,  `jobs`) 
- [x] while/foreach loops
- [x] if
- [x] `||`/`&&`
- [ ] configuration file
- [x] script with shebangs
- [ ] `-c` eval argument
- [ ] `-D` set env var at boot
- [ ] `-e` exit on failure
- [ ] `-n` (dry run mode)
- [ ] `-h` help (open man?)
- [x] globbing
- [x] var interpreter
- [x] inhibitor
- [x] magic quotes
- [x] parenthesis
- [x] command history (`history` btln)
- [x] heredocs
- [ ]  functions (`:() { :|:& }`)
- [ ] special env vars: `$?`, `$$`, ...
- [ ] git integration (branch)