proc_sysvipc(5)

๐Ÿ’– proc_sysvipc โ€” the System V IPC gossip corner of /proc ๐Ÿ’–

okay bestie, so this is a page from the File Formats Manual section of the Linux man-pages, and it's literally just about one little directory that's holding so much tea. pull up a chair ๐Ÿซถ


๐ŸŒธ NAME ๐ŸŒธ

/proc/sysvipc/ โ€” System V IPC, no cap


โœจ DESCRIPTION โœจ

๐ŸŽ€ /proc/sysvipc/

so this is a subdirectory, right? and inside it live three absolutely iconic pseudo-files: msg, sem, and shm. those are the whole squad. ๐Ÿ‘‘

and what do they do?? they list the System V Interprocess Communication (IPC) objects that are currently existing on your system โ€” and yes, each one gets its own file, because we love organization in this house:

  • msg โ†’ message queues ๐Ÿ“ฌ
  • sem โ†’ semaphores ๐Ÿšฆ
  • shm โ†’ shared memory ๐Ÿง 

the info they give you is basically the same energy as what you'd get from ipcs(1) โ€” like, similar information, different delivery. both valid. both slay.

and here's the part that makes it so easy to read: these files have headers, and they're formatted with one IPC object per line. it's giving organized. it's giving readable. it's giving "you don't need to squint at this, bestie." ๐Ÿ˜ญ๐Ÿ’…

oh and if you want the โœจloreโœจ โ€” the actual background on what all that information means โ€” go read sysvipc(7). it's the director's commentary, fr fr.

๐Ÿฆ‹ SEE ALSO ๐Ÿฆ‹

  • proc(5) โ€” the mothership, the main character, the whole vibe ๐ŸŒˆ

and that's the whole page, periodt. ๐Ÿ’€

sign-off time: this one's from Linux man-pages 6.20, dated 2026-02-08, and it lives in section 5 of the manual (that's proc_sysvipc(5) for the folks at home ๐Ÿ’–). go forth, read your /proc, and stay hydrated. ๐ŸŒธโœจ๐Ÿซถ

๐Ÿ“ฆ where this page comes from
  • arch rolling: man-pages 6.20-1 ยท BSD-2-Clause AND BSD-3-Clause AND BSD-4.3TAHOE AND BSD-4-Clause-UC AND GPL-1.0-or-later AND GPL-2.0-only AND GPL-2.0-or-later AND GPL-3.0-or-later AND LGPL-3.0-linking-exception AND LGPL-3.0-or-later AND LicenseRef-Public-Domain AND LicenseRef-UltraPermissive AND Linux-man-pages-1-para AND Linux-man-pages-copyleft AND Linux-man-pages-copyleft-2-para AND Linux-man-pages-copyleft-var AND MIT AND Spencer-94
  • nixpkgs unstable: man-pages 6.20
  • ๐Ÿ“œ the page's license: GPL-3.0-or-later
  • ๐Ÿ’– girlified by deepseek-ai/DeepSeek-V4.1-Flash on : a language model's rewrite of the original, under its terms