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       computer-janitor - clean up a system installation


       computer-janitor [--version|-h]
       computer-janitor find [-i|-r|-s|-v|-h]
       computer-janitor clean [-a|-v|-h] [CRUFT]...
       computer-janitor ignore [-h] CRUFT
       computer-janitor unignore [-h] CRUFT


       computer-janitor  and  computer-janitor-gtk  find and remove cruft from
       your system.  The former is a command line program, the  latter  has  a
       graphical user interface.

       Cruft  is anything that shouldn't be on the system, but is.  Stretching
       the definition, it is also things that should be  on  the  system,  but
       aren't.  Examples:

       o      Packages  that  were originally installed because something else
              depended on them, but  the  depending  package  has  since  been
              removed.  Typically this includes large numbers of libraries.

       o      Packages  that are no longer supported by the current release of
              the operating system.  For example,  this  can  be  applications
              whose  development have stopped and that no longer have support,
              including  for  security  issues.   Keeping  such   applications
              installed can be dangerous.

       o      Configuration tweaks that are missing from the system, but which
              would be there if the system was installed  from  scratch.   For
              example,  mount  options  for  filesystems  such as the relatime

       computer-janitor has four modes of operation, invoked by the first non-
       option word in the argument list.

       o      find  searches  for  cruft  and prints out a list of them.  Each
              piece of cruft  is  also  tagged  with  its  state:  ignored  or

       o      clean  actually  removes the cruft.  It will remove those pieces
              of cruft you name on the command line.  If you  want  to  remove
              everything  identified by find that is marked removable, use the
              --all option.

       o      ignore  and  unignore  mark  cruft  as  ignored  or   removable,


       Each  subcommand listed above has its own set of options.  If computer-
       janitor is invoked  with  no  subcommand,  the  following  options  are

              Print the version number and exit.

              Print some global help and exit.

       The find subcommand supports the following options:

              Find and display only the system's ignored cruft.

              Find and display only the system's removable cruft.

              Display only the cruft names; do not use with --verbose.

              Display a detailed explanation for each piece of cruft found.

              Print detailed help for the find subcommand and exit.

       The  clean  subcommand requires either a cruft name or the --all option
       to specify which cruft to remove.  It supports the following options:

       --all | -a
              Remove all system cruft that are not ignored.

              Provide more details about the cruft being cleaned up.

              Print detailed help for the clean subcommand and exit.

       The ignore and unignore commands both take the name of a cruft to  mark
       ignored  or  removable,  respectively.   They  both  also  accept these

              Print detailed help for the ignore or unignore  subcommands  and


       computer-janitor will return an exit code of 0 for successful operation
       (no errors).  It will return a non-zero exit  code  if  there  are  any
       errors.  It is not an error to find cruft, or to not find cruft.


              This file stores the ignored or removable state of system cruft.
              Any cruft not listed in this file is by default removable.

              This directory contains whitelist files,  which  specify  things
              that  are  never  considered cruft.  A whitelist file has a name
              that ends with .whitelist, and contains  one  (potential)  cruft
              name  per  line.   (Empty  lines  and lines beginning with # are


       To find all cruft on the system:

              computer-janitor find

       To remove a specific piece of cruft:

              computer-janitor clean hello

       To mark a piece of cruft as ignored, so that it isn't removed by  clean

              computer-janitor ignore hello

       To mark a piece of cruft as removable again:

              computer-janitor unignore hello

       To remove all cruft that isn't ignored:

              computer-janitor clean --all