*BASH User Commands Ubuntu 10.04.4 LTS Server coreutils
PSTREE(1)                        User Commands                       PSTREE(1)

       pstree - display a tree of processes

       pstree [-a|--arguments] [-c|--compact] [-h|--high-
       light-all|-Hpid|--highlight-pid pid] [-l|--long] [-n|--numeric-sort]
       [-p|--show-pids] [-u|--uid-changes] [-Z|--security-context]
       [-A|--ascii|-G|--vt100|-U|--unicode] [pid|user]
       pstree -V|--version

       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.




       Child  threads  of a process are found under the parent process and are
       shown with the process name in curly braces, e.g.


       If pstree is called as pstree.x11 then it will prompt the user  at  the
       end of the line to press return and will not return until that has hap-
       pened. This is useful for when pstree is run in a xterminal.

       -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 for processes but not threads.

       -A     Use ASCII characters to draw the tree.

       -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
              current  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

       -l     Display long lines. By default, lines are truncated to the  dis-
              play  width or 132 if output is sent to a non-tty or if the dis-
              play 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
              '\033%8' and left with echo -e '\033%@'

       -V     Display version information.

       -Z     (SELinux) Show security context for each process. This flag will
              only work if pstree is compilied with SELinux support.

       /proc     location of the proc file system

       Werner     Almesberger     <werner@almesberger.net>     Craig     Small

       Some character sets may be incompatible with the VT100 characters.

       ps(1), top(1).

Linux                             2009-12-16                         PSTREE(1)