man > proc_pid_comm(5)

proc_pid_comm(5)                         File Formats Manual                        proc_pid_comm(5)

NAME
       /proc/pid/comm - command name

DESCRIPTION
       /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 trun‐
              cated.

              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/ker‐
              nel/core_pattern; see core(5).

SEE ALSO
       proc(5)

Linux man-pages 6.7                          2023-08-15                             proc_pid_comm(5)