{"id":20749444,"url":"https://github.com/cristianzsh/system-programs","last_synced_at":"2026-04-28T05:36:33.411Z","repository":{"id":130227370,"uuid":"259169909","full_name":"cristianzsh/system-programs","owner":"cristianzsh","description":"Implementation of various Unix system programs","archived":false,"fork":false,"pushed_at":"2020-09-19T23:50:26.000Z","size":22,"stargazers_count":2,"open_issues_count":0,"forks_count":0,"subscribers_count":1,"default_branch":"master","last_synced_at":"2025-12-26T16:51:17.802Z","etag":null,"topics":["c","kernel","linux","operating-systems","posix","programs","syscalls","system-calls"],"latest_commit_sha":null,"homepage":"","language":"C","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"gpl-3.0","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/cristianzsh.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null}},"created_at":"2020-04-27T01:09:57.000Z","updated_at":"2020-09-20T17:18:39.000Z","dependencies_parsed_at":null,"dependency_job_id":"c16829a3-4096-4ffd-b971-d72808b84339","html_url":"https://github.com/cristianzsh/system-programs","commit_stats":null,"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"purl":"pkg:github/cristianzsh/system-programs","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/cristianzsh%2Fsystem-programs","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/cristianzsh%2Fsystem-programs/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/cristianzsh%2Fsystem-programs/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/cristianzsh%2Fsystem-programs/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/cristianzsh","download_url":"https://codeload.github.com/cristianzsh/system-programs/tar.gz/refs/heads/master","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/cristianzsh%2Fsystem-programs/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":32368533,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-04-27T20:07:02.737Z","status":"online","status_checked_at":"2026-04-28T02:00:07.250Z","response_time":56,"last_error":null,"robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":true,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["c","kernel","linux","operating-systems","posix","programs","syscalls","system-calls"],"created_at":"2024-11-17T08:23:02.403Z","updated_at":"2026-04-28T05:36:33.365Z","avatar_url":"https://github.com/cristianzsh.png","language":"C","readme":"# Unix system programs\n\nThis repository contains the implementation of different Unix system programs in C. They were written for an assignment of the operating systems classes I took. The goal is to use and **understand** the main POSIX system calls.\n\nUploaded here for anyone who appreciates operating systems or wants a quick reference.\n\n### Implemented programs:\n1. [date](src/date.c);\n2. [uptime](src/uptime.c);\n3. [ls](src/ls.c);\n4. [cp](src/cp.c);\n5. [rm](src/rm.c);\n6. [mv](src/mv.c);\n7. [cat](src/cat.c);\n8. [mkdir](src/mkdir.c);\n9. [rmdir](src/rmdir.c);\n10. [chmod](src/chmod.c);\n11. [chown](src/chown.c);\n12. [ps](src/ps.c).\n\nNote that these programs are simplified versions of the original ones since they were written for learning purposes.\n\n### Useful materials:\n\n1. [Linux man-pages: section 2](http://man7.org/linux/man-pages/dir_section_2.html);\n2. [Operating Systems Concepts (by Abraham Silberschatz)](https://www.amazon.com/Operating-System-Concepts-Abraham-Silberschatz-ebook/dp/B07CVKH7BD/);\n3. [Modern Operating Systems (by Andrew Tanenbaum)](https://www.amazon.com/Modern-Operating-Systems-Andrew-Tanenbaum/dp/013359162X).\n\nCristian Souza\n","funding_links":[],"categories":[],"sub_categories":[],"project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fcristianzsh%2Fsystem-programs","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fcristianzsh%2Fsystem-programs","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fcristianzsh%2Fsystem-programs/lists"}