The pstree command can be
used on a Linux system to trace the lineage of each child process.
<span>The
pstree command shows running processes as a tree. The tree is rooted at either </span>pid <span>or </span>init <span>if
pid is omitted. If a </span>user name <span>is
specified, all process trees rooted at processes owned by that user are shown.</span>
