Interpreting ipcs -s -i "id"

Solution Verified - Updated -

Issue

  • What does each column mean in ipcs -s -i <semid>?
$ ipcs -s -i 11

Semaphore Array semid=11
uid=1000         gid=1000        cuid=1000       cgid=1000
mode=0600, access_perms=0600
nsems = 1
otime = Not set
ctime = Tue Aug 15 14:43:01 2023
semnum     value      ncount     zcount     pid   <<<---
0          0          0          0          2217263

Environment

  • Red Hat Enterprise Linux 7
  • System V semaphore

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