The psmisc package contains utilities for managing processes on your
system: pstree, killall, fuser and pslog. The pstree command displays
a tree structure of all of the running processes on your system. The
killall command sends a specified signal (SIGTERM if nothing is specified)
to processes identified by name. The fuser command identifies the PIDs
of processes that are using specified files or filesystems. The pslog
command shows the path of log files owned by a given process.