Command manuals for process

htop, pcp-htop - interactive process viewer

kill - send a signal to a process

killall - kill processes by name

lsof - list open files

nice - run a program with modified scheduling priority

nohup - run a command immune to hangups, with output to a non-tty

pgrep, pkill, pidwait - look up, signal, or wait for processes based on name and other attributes

ps - report a snapshot of the current processes.

pstree - display a tree of processes

top - display Linux processes