When I run apt-get update command
133
How can I fix a 404 Error when using a PPA or updating my package lists?
137277
Run a command before & after ubuntu apt upgrade & unattended-upgrades
107009
ubuntu 18.04 apt-get upgrade problem "redirection loop encountered."
13720
apt-get update fails to fetch files, “Temporary failure resolving …” error
39053
16.04 apt-get update hangs
22164
Problem with sudo apt get update: The repository cdrom... does not have a Release file
54998
What does "apt-get install !!" do and how to make it work?
28650
`apt-get update` cannot find Ubuntu servers
148676
Where is the result of the "apt-get update" package list stored
35146
Will apt-get dist-upgrade upgrade my system to newer version?
152479
Why are apt-get repositories hardcoded to a specific release?
135452
How do you see what packages are available for update
53498
How do I find packages to install via apt-get
120872
What is apt-cache used for?
12368
A "failed to fetch" error occurs when apt-get update is run. How do I fix this?
118864
What exactly does sudo apt-get -f install do?
46155
What does apt-get install do under the hood?