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1. export more variables for scripts
   or check when they are automatically exported
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1.1.
Anhaengen von der -F / --filter Doku von Killerfox
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1.2. replace sed?
compare timing:
   _echo () { echo "$name $msg" }
and create
   _techo () { echo "$timestamp $name $msg" }
perhaps create
   _eecho () { _techo "ERROR $msg" }
?
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2. clonen von anderen existierenden backups?
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3. detect unfinished backups
sven / markierung
   - wie seht der Marker aus?
      -> .ccollect-YEAR-MM-DD.HHmm.pid (like the directory)
   --> assume incomplete, when we did not finish.
   --> means it's complete,when rsync was successful
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4. Add ccollect-restore.sh
   (new project, perhaps coordinated with jchome's ccollect-config)

   Who will do that?
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ccollect Zeitausgabe verbessern
   - Wofuer wie lange gebraucht
      * rm
      * klonen (gibt es so ja nicht)
Wenn Summary angegeben ist am Ende ausgeben