$ vim &
[1] 8263
$ ipython &
[2] 8264
$ ps S
PID TTY STAT TIME COMMAND
3082 pts/0 Ss 0:00 bash
3137 pts/0 Sl+ 0:00 python /usr/bin/ipython
8207 pts/2 Ss 0:00 bash
8263 pts/2 T 0:00 vim
8264 pts/2 Tl 0:00 python /usr/bin/ipython
8284 pts/2 Tl 0:00 python /usr/bin/ipython
8355 pts/2 R+ 0:00 ps S