PATH INIT systemd svinit

ps ps -ef

pstree

sleep 90 <CTRL>+Z

dd if=/dev/zero of=/dev/null

pidof

jobs

bg

fg

top

.toprc

top -u USER

htop

atop

bashtop

glances

ps ps aux ps fax

nice

renice

crontab crontab -e crontab -l