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How can I get `apt-get update` to reflect error status in its exit code?

rated 0 times [ 1] [ 0] / answers: 1 / hits: 1854 / 2 Years ago, tue, august 16, 2022, 9:20:09

When running sudo apt-get update -q, sometimes I see things like

Err:23 http://ppa.launchpad.net/chris-lea/redis-server/ubuntu precise/main i386 Packages

  Could not connect to ppa.launchpad.net:80 (91.189.95.83), connection timed out

Err:24 http://ppa.launchpad.net/chris-lea/redis-server/ubuntu precise/main Translation-en

  Unable to connect to ppa.launchpad.net:http:

or like

W: http://us-central1.gce.archive.ubuntu.com/ubuntu/dists/precise-updates/InRelease: Signature by key 630239CC130E1A7FD81A27B140976EAF437D05B5 uses weak digest algorithm (SHA1)

But echo $? tells me that apt-get update -q succeeded. How can I get the error/warning status to be fatal, and make apt-get update fail with a non-zero exit code?

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erettor

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2 Years ago

answered 2 Years ago calronze · Accepted Answer

As mentioned by @Terrance, this question is very close to that other question apt-get update exit status (in Unix & Linux StackExchange).

FYI I've just posted there another solution that can also be combined with the travis_retry Travis CI command (which might be the intended use case of the OP):

exec {fd}>&2 # copy stderr to some unused fd

travis_retry bash -o pipefail -c "sudo apt-get update -y -q 2>&1 | tee /dev/fd/$fd | ( ! grep -q -e '^Err:' -e '^E:' )"

exec {fd}>&- # close file descriptor