Provided by: computer-janitor_1.12.1-0ubuntu3_all bug


       computer-janitor - clean up a system installation


       computer-janitor find
       computer-janitor cleanup [--all] [CRUFT]...
       computer-janitor ignore [CRUFT]...
       computer-janitor unignore
       computer-janitor-gtk [options] [CRUFT]...


       computer-janitor  and  computer-janitor-gtk  find and remove cruft from
       your system.  The first one 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:

       ·      Packages  that were installed because something else depended on
              them, but now nothing depends on them anymore.   Typically  this
              includes large numbers of libraries.

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

       ·      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: the relatime option is
              an example.

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

       ·      find  searches  for  cruft  and prints out a list of them.  Each
              piece of cruft is  also  tagged  with  it’s  state:  ignored  or

       ·      cleanup 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, you need
              to use the --all option.

       ·      ignore  and  unignore  mark  cruft  as  ignored  or   removable,


       --all  With  the cleanup operation, remove all pieces of cruft that are
              not ignored.

              Use FILE as the name of the state file, for  persistent  storage
              of  the  state  (ignored  or  removable) of each piece of cruft.
              Default is /var/lib/computer-janitor/state.dat.   Use  /dev/null
              to disable persistent storage of state.

              Don’t  actually remove anything, just pretend to do so.  This is
              useful for testing stuff.

              Be verbose: cause find to write a description of each  piece  of
              cruft  it  finds, to help the user understand why understand why
              the cruft is cruft.


       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.


              Set this to yes to set the logging level to  DEBUG  rather  than

              Set  this to the directory in which computer-janitor should look
              for  plugins.   The   default   is   to   look   for   them   in


              This  file  stores the state of cruft: ignored or removable.  It
              only stores the state of cruft that have been state manipulated.
              The state of cruft not mentioned in this file is removable.

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


       To find all cruft on the system:

              computer-janitor find

       To remove a specific piece of cruft:

              computer-janitor cleanup hello

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

              computer-janitor ignore hello

       To remove the ignored status:

              computer-janitor unignore hello

       To remove all cruft that isn’t ignored:

              computer-janitor cleanup --all