Server Fault is a question and answer site for system and network administrators. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I use an specific command to check security updates:

/usr/bin/apt-get update -o Dir::Etc::SourceList=/etc/apt/security.sources.list

But when executed it use sources files in /etc/apt/sources.list.d/. So i want this command only read the specified source file. How to do it ?

share|improve this question
up vote 3 down vote accepted

You are looking for Dir::Etc::SourceParts:

apt-get update -o Dir::Etc::SourceList=/etc/apt/security.sources.list -o Dir::Etc::SourceParts=/some/valid/dir/false

You can use whatever instead of false, you can use a valid empty directory if you want.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.