man > CAPTREE(8)

CAPTREE(8)                             System Manager's Manual                            CAPTREE(8)

NAME
       captree - display tree of process capabilities

SYNOPSIS
       captree [OPTIONS] [(pid|glob-name) ...]

DESCRIPTION
       captree  displays  the  capabilities on the mentioned processes indicated by pid or glob-name
       value(s) given on the command line. If no pid etc values are supplied, pid=1  is  implied.  A
       pid value of 0 displays all the processes known to the kernel.

       The  POSIX.1e capabilities are displayed in double quotes in the cap_from_text(3) format. The
       IAB tuple of capabilities is displayed between square brackets in the text  format  described
       in  cap_iab(3).  Note, the IAB tuple text is omitted if it contains empty A and B components.
       This is because the regular POSIX.1e text contains information about the Inheritable flag al‐
       ready. This behavior can be overridden with the --verbose command line argument.

       Optional arguments (which must precede the list of pid|glob-name values):

       --help Displays usage information and exits. Note, modern Go runtimes exit with status  0  in
              this case, but older runtimes exit with status 2.

       --verbose
              Displays capability sets and IAB tuples even when they are empty, or redundant.

       --depth=n
              Displays the process tree to a depth of n.  Note, the default value for this parameter
              is 0, which implies infinite depth.

       --colo[u]r=false
              Colo[u]rs  the targeted PIDs, if stdout is a TTY, in red. This option defaults to true
              when running via a TTY. The --color=false argument will suppress  this  color.  Piping
              the output into some other program will also suppress the use of colo[u]r.

EXIT STATUS
       If the supplied target cannot be found the exit status is 1. Should an unrecognized option be
       provided, the exit status is 2. Otherwise, captree exits with status 0.

REPORTING BUGS
       Please report bugs via:

       https://bugzilla.kernel.org/buglist.cgi?component=libcap&list_id=1090757

SEE ALSO
       cap_from_text(3), capabilities(7), and cap_iab(3).

       There is a longer article about captree, which includes some examples, here:

          https://sites.google.com/site/fullycapable/captree

AUTHOR
       Andrew G. Morgan <morgan AT kernel.org>

                                             2022-04-11                                   CAPTREE(8)