Manual: pstree.x11

PSTREE(1)						User Commands						   PSTREE(1)

NAME
       pstree - display a tree of processes

SYNOPSIS
       pstree [-a, --arguments] [-c, --compact-not] [-C, --color attr] [-g, --show-pgids] [-h, --high‐
       light-all, -H pid, --highlight-pid pid] [-l, --long] [-n, --numeric-sort] [-N, --ns-sort ns] [-p, --show-pids]
       [-s, --show-parents] [-S, --ns-changes] [-t, --thread-names] [-T, --hide-threads] [-u, --uid-changes] [-Z, --secu‐
       rity-context] [-A, --ascii, -G, --vt100, -U, --unicode] [pid, user]
       pstree -V, --version

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]

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

	   icecast2---13*[{icecast2}]

       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 happened.	This is useful for when pstree is run in a xterminal.

       Certain	kernel or mount parameters, such as the hidepid option for procfs, will hide information for some processes.
       In these situations pstree will attempt to build the tree without this information, showing process names as question
       marks.

OPTIONS
       -a     Show command line arguments.  If the command line of a process is swapped out, that process is shown in paren‐
	      theses.  -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.

       -C     Color the process name by given attribute. Currently pstree only accepts the value age which colors by process
	      age.  Processes newer than 60 seconds are green, newer than an hour yellow and the remaining red.

       -g     Show PGIDs.  Process Group IDs are shown as decimal numbers in parentheses after each process name.   If	both
	      PIDs and PGIDs are displayed then PIDs are shown first.

       -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 high‐
	      lighting is not available.

       -l     Display long lines.  By default, lines are truncated to either the COLUMNS environment variable or the display
	      width.  If neither of these methods work, the default of 132 columns is used.

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

       -N     Show individual trees for each namespace of the type specified.  The available types are: ipc, mnt, net,	pid,
	      time, user, uts.	Regular users don't have access to other users' processes information, so the output will be
	      limited.

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

       -s     Show parent processes of the specified process.

       -S     Show namespaces transitions.  Like -N, the output is limited when running as a regular user.

       -t     Show full names for threads when available.

       -T     Hide threads and only show processes.

       -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 con‐
	      sole with echo -e ' 33%8' and left with echo -e ' 33%@'.

       -V     Display version information.

       -Z     Show the current security attributes of the process. For SELinux systems this will be the security context.

FILES
       /proc  location of the proc file system

BUGS
       Some character sets may be incompatible with the VT100 characters.

SEE ALSO
       ps(1), top(1), proc(5).

psmisc							 2021-06-21						   PSTREE(1)