setcap

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



NAME
       setcap - set file capabilities

SYNOPSIS
       setcap [-q] [-n <rootid>] [-v] {capabilities|-|-r} filename [ ...
       capabilitiesN fileN ]

DESCRIPTION
       In the absence of the -v (verify) option setcap sets the capabilities
       of each specified filename to the capabilities specified.  The optional
       -n <rootid> argument can be used to set the file capability for use
       only in a namespace with this rootid owner. The -v option is used to
       verify that the specified capabilities are currently associated with
       the file. If -v and -n are supplied, the -n <rootid> argument is also
       verified.

       The capabilities are specified in the form described in
       cap_from_text(3).

       The special capability string, '-', can be used to indicate that
       capabilities are read from the standard input. In such cases, the
       capability set is terminated with a blank line.

       The special capability string, '-r', is used to remove a capability set
       from a file. Note, setting an empty capability set is not the same as
       removing it. An empty set can be used to guarantee a file is not
       executed with privilege inspite of the fact that the prevailing
       ambient+inheritable sets would otherwise bestow capabilities on
       executed binaries.

       The -q flag is used to make the program less verbose in its output.

EXIT CODE
       The setcap program will exit with a 0 exit code if successful. On
       failure, the exit code is 1.

SEE ALSO
       cap_from_text(3), cap_set_file(3), getcap(8)



                               11 September 2018                     SETCAP(8)