Il comando pstree mostra i processi correntemente
in esecuzione
[murri@paley ~]$ pstree -u
init-+-amd
|-crond
|-gpm
|-inetd--in.ftpd
|-kflushd
|-klogd
|-kswapd
|-kupdate
|-lockd
|-lpd
|-6*[mingetty]
|-portmap
|-rpc.mountd
|-rpc.nfsd
|-rpciod
|-sendmail
|-sshd-+-20*[sshd]
| `-sshd--bash(murri)--pstree
|-syslogd
`-timed