The root file system is a RAM disk. The hard disk file systems are mounted on "/target". The editor available to you is nano. It's very small and easy to figure out. To get an idea of what Unix utilities are available to you, use the "help" command.
Anagraw n ufaylu aẓar d aḍebsi RAM. Inagrawen n yifuyla n uḍebsi usbiḍ ttwasulin ɣef "/target". Amaẓrag i ak·am-yellan d nano. Mecṭuḥ aṭas yerna yeshel ad t-tfehmeḍ. I wakken ad tesɛuḍ takti ɣef yibaɣuren n Unix i yellan, seqdec taladna "tallalt".