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I am unable to install and update many things on Ubuntu 18.04 because the terminal always shows: 

E: Could not open lock file /var/lib/apt/lists/lock - open (13: Permission denied)
E: Unable to lock directory /var/lib/apt/lists/
W: Problem unlinking the file /var/cache/apt/pkgcache.bin - RemoveCaches (13: Permission denied)
W: Problem unlinking the file /var/cache/apt/srcpkgcache.bin - RemoveCaches (13: Permission denied)
karel
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Lord Luke
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1 Answers1

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You need to run update commands apt-get update or apt-get upgrade with superuser a.k.a. root privileges, i.e.

sudo apt-get update
sudo apt-get upgrade
Kulfy
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