Tutorials

Execute last command as root

Re-run previously entered command as root user.

python
sudo !!

!! is automatically substituted to the content of the previous command. Turning the above line into sudo <your command here>.

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Elsewhere

Control memcached from the command line
Find all files containing a given string
Collaborate in the shell with screen (multiuser)
Pathomx v2.0.0: Analysis using the new visual editor