proc_pid_cgroup(5)

✨ proc_pid_cgroup(5) — the file-formats manual girlies know 💅

okay bestie, gather round, because today we're talking about /proc/pid/cgroup from the <pink>proc_pid_cgroup(5)</pink> manual page. it's tiny, it's iconic, and it's literally about control groups. let's get into it 🎀

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🦋 NAME 🦋

/proc/pid/cgroup — control group ✨

like. that's the whole name. short king. we love a minimal queen.

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🌸 DESCRIPTION 🌸

/proc/pid/cgroup (since Linux 2.6.24)

okay so this file has been holding it down since Linux 2.6.24, which is giving vintage but in a good way, like a thrifted jacket that's actually perfect 🧥💜

and the actual description? bestie it's one line and it points you somewhere else:

See cgroups(7).

no cap, that's it. the manual is basically saying "girl go read cgroups(7), i'm not doing the whole lore dump here" 😭 and honestly? respect the boundaries. go read cgroups(7) if you want the deep dive on control groups. this page is just the doorway 🚪✨

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💖 SEE ALSO 💖

• proc(5)

one single reference. one. and it's proc(5), because obviously, this file lives in /proc, the most chaotic roommate in the whole filesystem 🫶

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💀 friendly reminder that this page is SHORT and that is not a vibe check failure — it's just a lil pointer page. all the cgroup lore is in cgroups(7), periodt.

and that's the whole thing, bestie — written up in the Linux man-pages 6.20 release, dated 2026-02-08 🌈 stay hydrated, go read cgroups(7), and slay your process trees 👑💅