отображать дерево процессов (display a tree of processes)
Имя (Name)
pstree - display a tree of processes
Синопсис (Synopsis)
pstree [-a, --arguments] [-c, --compact-not] [-C, --color attr]
[-g, --show-pgids]
[-h, --highlight-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, --security-context]
[-A, --ascii, -G, --vt100, -U, --unicode] [pid, user]
pstree -V, --version
Описание (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.
Параметры (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 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 highlighting
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 console
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.
Файлы (Files)
/proc location of the proc file system
Ошибки (баги) (Bugs)
Some character sets may be incompatible with the VT100
characters.
Смотри также (See also)
ps(1), top(1), proc(5).
