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Shell umožňuje spúšťať príkazy, pracovať s rúrami a presmerovaniami, zatiaľ čo klient-server časť umožňuje posielanie správ, ktoré server prevádza na **veľké písmená** a vracia ich späť klientom.\n\n---\n\n## Funkcionalita\n\n### Shell\n- Podpora príkazov ako v klasickom Unix shelli\n- Spracovanie špeciálnych znakov: `#`, `;`, `\u003c`, `\u003e`, `|`, `\\`\n- Prispôsobený prompt: používateľské meno, hostname a aktuálny čas\n- Spustenie programov cez `fork()` a `execvp()`\n- Presmerovanie vstupu/výstupu, pipy\n\n### Klient–Server simulácia\n- Server prijíma text, prevádza ho na **uppercase** a vracia klientovi\n- Detekuje a ošetruje odpojenie klienta\n- Klient sa pripája k serveru a odosiela vstup\n- Pracuje s IP, portmi aj UNIX socketmi (`-p`, `-i`, `-u`)\n\n---\n\n## Spustenie\n\n```bash\n./shellnet -s -p 5000        # Spustenie servera na porte 5000\n./shellnet -c -i 127.0.0.1   # Pripojenie klienta k serveru cez IP\n./shellnet -h                # Zobrazí nápovedu\n```\n\n---\n\n## Implementácia\n\n- **Jazyk:** C (GCC)\n- **Platforma:** Unix/Linux\n- **Makefile:** Vlastný, na jednoduchú kompiláciu\n- **Knižnice a volania:**\n  - `fork()`, `execvp()`, `dup2()`, `wait()` – shell\n  - `socket()`, `bind()`, `listen()`, `accept()`, `connect()`, `read()`, `write()` – sieť\n\n---\n\n## Predpoklady\n\n- Jeden typ spojenia (`-p`, `-u`, alebo `-i`) na jedno spustenie\n- Shell aj sieťová vrstva fungujú súbežne\n- Vstupné príkazy musia byť dostupné v systéme (`$PATH`)\n- Klient/server bežia na tom istom alebo dostupnom systéme\n\n---\n\n## Algoritmy a techniky\n\n- **Parser:** Vlastný, pre spracovanie špeciálnych znakov a príkazových argumentov\n- **Sieťová slučka:** Čaká na vstup, prevedie text na veľké písmená, pošle späť\n- **Modularita:** `shell.h`, `server_utils.h`, `client_utils.h` – každá časť má vlastný súbor\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2F0marrkvi0%2Fsimpleshell_spaasm","html_url":"https://awesome.ecosyste.ms/projects/github.com%2F0marrkvi0%2Fsimpleshell_spaasm","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2F0marrkvi0%2Fsimpleshell_spaasm/lists"}