proc_pid_comm(5) - Linux manual page (original) (raw)

procpidcomm(5) File Formats Manual procpidcomm(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)](../man2/clone.2.html)), 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)](../man2/prctl.2.html) **PR_SET_NAME**
          and **PR_GET_NAME** operations, and is employed by
          [pthread_setname_np(3)](../man3/pthread%5Fsetname%5Fnp.3.html) when used to rename threads other
          than the caller.  The value in this file is used for the _%e_
          specifier in _/proc/sys/kernel/corepattern_; see [core(5)](../man5/core.5.html).

SEE ALSO top

   [proc(5)](../man5/proc.5.html)

COLOPHON top

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Linux man-pages 6.10 2024-05-02 procpidcomm(5)

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