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I sometimes see update commands for Ubuntu which make it twice as this sample

sudo apt-get update && sudo apt-get upgrade

I wonder why do we have to call it twice like that? Why not just once?

Community
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Nam G VU
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1 Answers1

4

Those are two different commands. This one:

sudo apt-get update

Says to update the package index file. If there is a newer version of a package available, replace it in the index.

sudo apt-get upgrade

Says to compare all the packages installed on the system to the updated package index and offer all upgrades available.

chili555
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