Difference Between 'Sudo Apt-Get' and 'Sudo -E Apt-Get'
I'm Using Ubuntu 15.10 Guest on Vmware Player (7.1.3 Build-3206955), with Windows 10 as the Host Os. I'm Able to Use Firefox to Browse the Web Inside the...
I'm using Ubuntu 15.10 guest on VMWare Player (7.1.3 build-3206955), with Windows 10 as the host OS. I'm able to use Firefox to browse the web inside the guest, however I'm unable to use apt on the terminal.
Whenever i invoke the command sudo apt-get update, it gets stuck at 0% [connecting to in.archive.ubuntu.com], finally failing. Also, using sudo apt-get install <package> always results in the package not even being found.
On the other hand, using the same commands with the -E flag on sudo makes them work.
Can somebody explain what's happening here?
EDIT: I forgot to add that i'm using multiple internet connections; one with proxy and one without. Regular sudo works on the one without proxy but not on the one with it.
1 Answer
The magic word here is proxy. In your environment you will have proxy information set that allows you to access the internet.
The environment variable http_proxy contains your proxy settings.
Execute echo $http_proxy to see them (maybe $HTTP_PROXY).
If you run sudo <command>, the command will be executed in its own environment as root. If you add the -E option to sudo, the command will be executed as root, but with most of your environment copied over.
You can check that by executing the following three commands:
envsudo envsudo -E env
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