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Run the last command as the root user

Written byPhuoc Nguyen
07 Mar, 2021
Command Line
We often see an error when executing a command that requires the root user permission. For example, installing a npm package as global probably requires `sudo`:
$ npm install -g package-name
In order to sudo the previous command, usually we press the Arrow key, append `sudo` to the beginning of the command and run it again.
It turns out that there is an easier, shorter command:
$ sudo !!
Here `!!` references the last command.
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Phước Nguyễn