Repeat previous command with sudo

suggest change

$ apt-get install r-base
E: Could not open lock file /var/lib/dpkg/lock - open (13: Permission denied)
E: Unable to lock the administration directory (/var/lib/dpkg/), are you root?
$ sudo !!
sudo apt-get install r-base
[sudo] password for <user>:

Found a mistake? Have a question or improvement idea? Let me know.

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