A Very Basic File System :

Build it, run it :

cargo build

cargo run

Arch :

Disk

Disk size : 64 blocks (1 block = 4 kB)

| super | imap | dmap | INODES (x5) | DATAS (x56) |

File system

• Super : | blk_nb | dblk_nb | iblk_nb | imap_sz | dmap_sz | fst_inode | fst_data | imap | dmap | root (inode) | ... |

• Inode : | iid | ftype | fsize | data (*u8) | ... |

• Directory : | desc (fdesc) | desc_tbl (*fdesc) | capa |

• File descriptor : | name (*char) | iid | ... |

Shell

• Command : cmd := cmd1 (pp_cmd) | ... | cmdn (pp_cmd)

• Piped Command : pp_cmd := cmd (sp_cmd) || cmd (sp_cmd) > file (file name)

• Simple Command : sp_cmd := {mkdir, touch, rmdir, rm, mv, cd, echo, cat, ls, grep, exit} {args}