How to get ps to print group?

Question

ps aux will print out something formatted according to the below. It shows the user that the process runs under. But is there a way to display the group that the process runs under?

USER       PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND

Answer 1

You can specify the desired format:

   o format
          Specify user-defined format.  Identical to -o and --format.

For example, saying:

ps o pid,group

would print pid and group.

Saying:

ps o pid,group,gid

would print pid, group and group ID.

---

As per your comment, the following might work for you:

ps o user,pid,%cpu,%mem,vsz,rss,tty,stat,start,time,comm,group,gid

To see all processes:

ps ax o user,pid,%cpu,%mem,vsz,rss,tty,stat,start,time,comm,group,gid

Answer 2

ps ax o user,pid,group,gid,%cpu,%mem,vsz,rss,tty,stat,start,time,comm,args=ARGS

To print the full command e.g python script.py --env LOCAL

Answer 3

This gives similar output to ps -ef but adds the effective group name.

ps -eO user,group,ppid,c,start_time

(That flag is a capital O.)