systemd-delta(1) — Linux manual page

NAME | SYNOPSIS | DESCRIPTION | OPTIONS | EXAMPLES | EXIT STATUS | SEE ALSO | COLOPHON

SYSTEMD-DELTA(1)              systemd-delta              SYSTEMD-DELTA(1)

NAME         top

       systemd-delta - Find overridden configuration files

SYNOPSIS         top


       systemd-delta [OPTIONS...] [PREFIX | PREFIX/SUFFIX | SUFFIX...]

DESCRIPTION         top

       systemd-delta may be used to identify and compare configuration
       files that override other configuration files. Files in /etc/ have
       highest priority, files in /run/ have the second highest priority,
       ..., files in /usr/lib/ have lowest priority. Files in a directory
       with higher priority override files with the same name in
       directories of lower priority. In addition, certain configuration
       files can have ".d" directories which contain "drop-in" files with
       configuration snippets which augment the main configuration file.
       "Drop-in" files can be overridden in the same way by placing files
       with the same name in a directory of higher priority (except that,
       in case of "drop-in" files, both the "drop-in" file name and the
       name of the containing directory, which corresponds to the name of
       the main configuration file, must match). For a fuller
       explanation, see systemd.unit(5).

       The command line argument will be split into a prefix and a
       suffix. Either is optional. The prefix must be one of the
       directories containing configuration files (/etc/, /run/,
       /usr/lib/, ...). If it is given, only overriding files contained
       in this directory will be shown. Otherwise, all overriding files
       will be shown. The suffix must be a name of a subdirectory
       containing configuration files like tmpfiles.d, sysctl.d or
       systemd/system. If it is given, only configuration files in this
       subdirectory (across all configuration paths) will be analyzed.
       Otherwise, all configuration files will be analyzed. If the
       command line argument is not given at all, all configuration files
       will be analyzed. See below for some examples.

OPTIONS         top

       The following options are understood:

       -t, --type=
           When listing the differences, only list those that are asked
           for. The list itself is a comma-separated list of desired
           difference types.

           Recognized types are:

           masked
               Show masked files

           equivalent
               Show overridden files that while overridden, do not differ
               in content.

           redirected
               Show files that are redirected to another.

           overridden
               Show overridden, and changed files.

           extended
               Show *.conf files in drop-in directories for units.

               Added in version 205.

           unchanged
               Show unmodified files too.

       --diff=
           When showing modified files, when a file is overridden show a
           diff as well. This option takes a boolean argument. If
           omitted, it defaults to true.

       -h, --help
           Print a short help text and exit.

       --version
           Print a short version string and exit.

       --no-pager
           Do not pipe output into a pager.

EXAMPLES         top

       To see all local configuration:

           systemd-delta

       To see all runtime configuration:

           systemd-delta /run

       To see all system unit configuration changes:

           systemd-delta systemd/system

       To see all runtime "drop-in" changes for system units:

           systemd-delta --type=extended /run/systemd/system

EXIT STATUS         top

       On success, 0 is returned, a non-zero failure code otherwise.

SEE ALSO         top

       systemd(1), systemd.unit(5)

COLOPHON         top

       This page is part of the systemd (systemd system and service
       manager) project.  Information about the project can be found at
       ⟨http://www.freedesktop.org/wiki/Software/systemd⟩.  If you have a
       bug report for this manual page, see
       ⟨http://www.freedesktop.org/wiki/Software/systemd/#bugreports⟩.
       This page was obtained from the project's upstream Git repository
       ⟨https://github.com/systemd/systemd.git⟩ on 2025-02-02.  (At that
       time, the date of the most recent commit that was found in the
       repository was 2025-02-02.)  If you discover any rendering
       problems in this HTML version of the page, or you believe there is
       a better or more up-to-date source for the page, or you have
       corrections or improvements to the information in this COLOPHON
       (which is not part of the original manual page), send a mail to
       man-pages@man7.org

systemd 258~devel                                        SYSTEMD-DELTA(1)

Pages that refer to this page: binfmt.d(5)modules-load.d(5)sysctl.d(5)systemd.preset(5)tmpfiles.d(5)systemd.directives(7)systemd.index(7)