How hard can it be? ps child/parent Post: 19720

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pstree

PSTREE(1)							   User Commands							 PSTREE(1)

NAME

       pstree - display a tree of processes

SYNOPSIS

       pstree [-a] [-c] [-h|-Hpid] [-l] [-n] [-p] [-u] [-G|-U] [pid|user]
       pstree -V

DESCRIPTION

       pstree  shows  running  processes  as  a tree. The tree is rooted at either pid or init if pid is omitted. If a user name is specified, all
       process trees rooted at processes owned by that user are shown.

       pstree visually merges identical branches by putting them in square brackets and prefixing them with the repetition count, e.g.

	   init-+-getty
		|-getty
		|-getty
		`-getty

       becomes

	   init---4*[getty]

OPTIONS

       -a     Show command line arguments. If the command line of a process is swapped out, that process is shown in  parentheses.  -a	implicitly
	      disables compaction.

       -c     Disable compaction of identical subtrees. By default, subtrees are compacted whenever possible.

       -G     Use VT100 line drawing characters.

       -h     Highlight the current process and its ancestors. This is a no-op if the terminal doesn't support highlighting or if neither the cur-
	      rent process nor any of its ancestors are in the subtree being shown.

       -H     Like -h, but highlight the specified process instead. Unlike with -h, pstree fails when using -H if highlighting is not available.

       -l     Display long lines. By default, lines are truncated to the display width or 132 if output is sent to a non-tty  or  if  the  display
	      width is unknown.

       -n     Sort processes with the same ancestor by PID instead of by name. (Numeric sort.)

       -p     Show PIDs. PIDs are shown as decimal numbers in parentheses after each process name. -p implicitly disables compaction.

       -u     Show  uid  transitions.  Whenever the uid of a process differs from the uid of its parent, the new uid is shown in parentheses after
	      the process name.

       -U     Use UTF-8 (Unicode) line drawing characters. Under Linux 1.1-54 and above, UTF-8 mode  is  entered  on  the  console  with  echo	-e
	      '33%8' and left with echo -e '33%@'

       -V     Display version information.

       -s     (Flask) Show Security ID (SID) for each process.

       -x     (Flask) Show security context for each process.

FILES

       /proc	 location of the proc file system

AUTHOR

       Werner Almesberger <Werner.Almesberger@epfl.ch>

SEE ALSO

       ps(1), top(1)

Linux								    May 6, 1998 							 PSTREE(1)

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