Ubuntu: how can I tell - using terminal - how often the package manager checks for updates?



Question:

I know on a desktop this can be checked easily,but I am using Ubuntu 14.04 server and need to be able to check the package managers update settings from the command line, how can I do this?


Solution:1

You can check the value of APT::Periodic::Update-Package-Lists (Do apt-get update automatically every n-days, 0=disable):

grep APT::Periodic::Update-Package-Lists /etc/apt/apt.conf.d/10periodic  
  • 1: Every day
  • 7: Every week


Solution:2

Use cron. It lets you schedule tasks. Run crontab -e.

On the file add lines

# Automatic package upgrades

0 0 * * 0 root (apt-get update && apt-get -y -d upgrade)   

It will update the system every Sunday morning at 12am.You can edit the numberto your needs. The numbers here indicate minutes, hours, days,etc. Tech republic Cron descirption


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