Add a line to a file using sudo

echo "foo bar" | sudo tee -a /path/to/some/file
This is the solution to the common mistake made by sudo newbies, since sudo echo "foo bar" >> /path/to/some/file does NOT add to the file as root. Alternatively, sudo echo "foo bar" > /path/to/some/file should be replaced by echo "foo bar" | sudo tee /path/to/some/file And you can add a >/dev/null in the end if you're not interested in the tee stdout : echo "foo bar" | sudo tee -a /path/to/some/file >/dev/null
Sample Output
foo bar

By: raphink
2009-02-18 13:54:25

What Others Think

sudo -s ?
Antoine · 668 weeks ago
@Antoine: sudo -s gives you a login. The goal here is just to add to a file as root _without_ using a root shell.
raphink · 668 weeks ago
They say, "All good boys go to heaven" financial advisor virginia beach
tillyracker · 24 weeks and 2 days ago
seofox · 2 weeks and 5 days ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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