ps - Standard Format Specifiers (Continued) and Environment Variables

18th chunk of `ps.man`

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 TGID      a number representing the thread group to which  a
                             task belongs (alias pid).  It is the process ID of
                             the thread group leader.

       thcount     THCNT     see nlwp.  (alias nlwp).  number of kernel threads
                             owned by the process.

       tid         TID       the  unique  number  representing  a  dispatchable
                             entity (alias lwp, spid).   This  value  may  also
                             appear  as: a process ID (pid); a process group ID
                             (pgrp); a session ID for the session leader (sid);
                             a thread group ID  for  the  thread  group  leader
                             (tgid); and a tty process group ID for the process
                             group leader (tpgid).

       time        TIME      cumulative   CPU time,   "[DD-]HH:MM:SS"   format.
                             (alias cputime).

       timens      TIMENS    Unique inode number describing the  namespace  the
                             process belongs to.  See namespaces(7).

       times       TIME      cumulative CPU time in seconds (alias cputimes).

       tname       TTY       controlling tty (terminal).  (alias tt, tty).

       tpgid       TPGID     ID  of  the  foreground  process  group on the tty
                             (terminal) that the process is connected to, or -1
                             if the process is not connected to a tty.

       trs         TRS       text resident set size,  the  amount  of  physical
                             memory devoted to executable code.

       tt          TT        controlling tty (terminal).  (alias tname, tty).

       tty         TT        controlling tty (terminal).  (alias tname, tt).

       ucmd        CMD       see comm.  (alias comm, ucomm).

       ucomm       COMMAND   see comm.  (alias comm, ucmd).

       uid         UID       see euid.  (alias euid).

       uname       USER      see euser.  (alias euser, user).

       unit        UNIT      displays  unit  which  a  process  belongs  to, if
                             systemd support has been included.

       user        USER      see euser.  (alias euser, uname).

       userns      USERNS    Unique inode number describing the  namespace  the
                             process belongs to.  See namespaces(7).

       uss         USS       Unique  set size, the non‐swapped physical memory,
                             which is not shared with an another task.

       utsns       UTSNS     Unique inode number describing the  namespace  the
                             process belongs to.  See namespaces(7).

       uunit       UUNIT     displays  user unit which a process belongs to, if
                             systemd support has been included.

       vsize       VSZ       see vsz.  (alias vsz).

       vsz         VSZ       virtual  memory  size  of  the  process   in   KiB
                             (1024-byte  units).  Device mappings are currently
                             excluded;  this  is  subject  to  change.   (alias
                             vsize).

       wbytes      WBYTES    Number  of  bytes  which this process caused to be
                             sent to the storage layer.

       wcbytes     WCBYTES   Number of cancelled write bytes.

       wchan       WCHAN     name of the kernel function in which  the  process
                             is sleeping.

       wchars      WCHARS    Number  of  bytes  which  this task has caused, or
                             shall cause to be written to disk.

       wops        WOPS      Number of write  I/O  operations—that  is,  system
                             calls such as write(2) and pwrite(2).

ENVIRONMENT VARIABLES
       The following environment variables could affect ps:

       COLUMNS
          Override default display width.

       LINES
          Override default

Title: ps - Standard Format Specifiers (Continued) and Environment Variables

Summary

This section describes the remaining standard format specifiers for the `ps` command, including thread and CPU time information (tgid, thcount, tid, time, times), terminal and process group IDs (tname, tpgid, tt, tty), memory usage (trs, uss, vsz), unit and user details (unit, uname, user, uunit), namespace inodes (timens, userns, utsns), I/O stats (wbytes, wcbytes, wchars, wops), and the kernel function a process is sleeping in (wchan). It also mentions that the COLUMNS and LINES environment variables can override the default display width and height.