proc_pid_comm(5) — Linux manual page

proc_pid_comm(5)           File Formats Manual           proc_pid_comm(5)

NAME         top

       /proc/pid/comm - command name

DESCRIPTION         top

       /proc/pid/comm (since Linux 2.6.33)
              This file exposes the process's comm value—that is, the
              command name associated with the process.  Different
              threads in the same process may have different comm values,
              accessible via /proc/pid/task/tid/comm.  A thread may
              modify its comm value, or that of any of other thread in
              the same thread group (see the discussion of CLONE_THREAD
              in clone(2)), by writing to the file
              /proc/self/task/tid/comm.  Strings longer than
              TASK_COMM_LEN (16) characters (including the terminating
              null byte) are silently truncated.

              This file provides a superset of the prctl(2) PR_SET_NAME
              and PR_GET_NAME operations, and is employed by
              pthread_setname_np(3) when used to rename threads other
              than the caller.  The value in this file is used for the %e
              specifier in /proc/sys/kernel/core_pattern; see core(5).

SEE ALSO         top

       proc(5)

COLOPHON         top

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Linux man-pages 6.15            2025-05-17               proc_pid_comm(5)

Pages that refer to this page: PR_SET_NAME(2const)

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