[Bug 1759846] Re: Incorrect test used for anacron being active

[Gordon Lack]

This is *still* an issue nearly a year on.

A better test line is actually this, which checks for anacron being
present before checking whether it is enabled:

( test -x /usr/sbin/anacron && systemctl -q is-enabled anacron )

The () are needed.

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https://bugs.launchpad.net/bugs/1759846

Title:
  Incorrect test used for anacron being active

Status in cron package in Ubuntu:
  New

Bug description:
  /etc/crontab uses

     test -x /usr/sbin/anacron

  for whether anacron is handling the daily/weekly/monthly cron jobs on a system.
  This means that if anacron is installed it is assumed to be running.
  However, this is a service, and can be disabled and since the package is installed by default it's simpler to just disable it on systems where you don't want it running rather then remove it.

  Changing the test to be:

      systemctl --no-pager is-enabled anacron 2>/dev/null

  (and changing the || to be &&, since the login is now reversed) caters
  for either case by checking what you really wish to know - is it
  active, not just installed.

  ProblemType: Bug
  DistroRelease: Ubuntu 17.10
  Package: cron 3.0pl1-128ubuntu5
  ProcVersionSignature: Ubuntu 4.13.0-37.42-generic 4.13.13
  Uname: Linux 4.13.0-37-generic x86_64
  ApportVersion: 2.20.7-0ubuntu3.7
  Architecture: amd64
  CurrentDesktop: KDE
  Date: Thu Mar 29 13:33:47 2018
  InstallationDate: Installed on 2017-11-01 (147 days ago)
  InstallationMedia: Kubuntu 17.10 "Artful Aardvark" - Release amd64 (20171017.1)
  SourcePackage: cron
  UpgradeStatus: No upgrade log present (probably fresh install)

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