Section: User Commands (1)
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pstree - display a tree of processes
shows running processes as a tree. The tree is rooted at either
is omitted. If a user name is specified, all process trees rooted at
processes owned by that user are shown.
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.
is called as
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
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
will attempt to build the tree without this information, showing process
names as question marks.
Show command line arguments. If the command line of a process is
swapped out, that process is shown in parentheses.
implicitly disables compaction for processes but not threads.
Use ASCII characters to draw the tree.
Disable compaction of identical subtrees. By default, subtrees are
compacted whenever possible.
Use VT100 line drawing characters.
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.
but highlight the specified process instead. Unlike with
fails when using
if highlighting is not
Show PGIDs. Process Group IDs are shown as decimal numbers in
parentheses after each process name.
implicitly disables compaction. If both PIDs and PGIDs are displayed
then PIDs are shown first.
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.
Sort processes with the same ancestor by PID instead of by name.
Show individual trees for each namespace of the type specified. The
available types are: ipc, mnt, net, pid, user, uts. Regular users don't
have access to other users' processes information, so the output will be
Show PIDs. PIDs are shown as decimal numbers in parentheses after each
implicitly disables compaction.
Show parent processes of the specified process.
Show namespaces transitions. Like -N, the output is limited when running
as a regular user.
Show full names for threads when available.
Hide threads and only show processes.
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
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%@'
Display version information.
(SELinux) Show security context for each process. This flag will only
work if pstree is compiled with SELinux support.
location of the proc file system
Some character sets may be incompatible with the VT100 characters.