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Whenever I open the terminal,

To run a command as administrator (user "root"), use "sudo <command>".  
See "man sudo_root" for details.

appears before the terminal. How do I get that to go away?

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Interesting. I once saw such a thing, but never on terminal I open myself. How would I get that back if I wanted it? – MPi Jan 21 '11 at 15:41
up vote 64 down vote accepted

Once you run a sudo command, the file ~/.sudo_as_admin_successful will be created and the warning will go away. So either run a sudo command, such as sudo apt-get update or create the ~/.sudo_as_admin_successful file manually:

touch ~/.sudo_as_admin_successful

If you want the warning back for whatever reason, remove ~/.sudo_as_admin_successful:

rm ~/.sudo_as_admin_successful
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Thanks that worked. – mouche Jan 26 '11 at 6:05
Is there a way to remove this functionality completely? – tubaguy50035 Apr 18 '14 at 8:11

Maverick? Comment it out: sudo vim /etc/bash.bashrc. The section, commented:

# sudo hint
# if [ ! -e "$HOME/.sudo_as_admin_successful" ]; then
#     case " $(groups) " in *\ admin\ *)
#     if [ -x /usr/bin/sudo ]; then
#     cat <<-EOF
#     To run a command as administrator (user "root"), use "sudo <command>".
#     See "man sudo_root" for details.
#     EOF
#     fi
#     esac
# fi

Finding the file to start:

$ sudo grep -R "man sudo_root" /etc

The result:

/etc/bash.bashrc:   See "man sudo_root" for details.

and then scroll though the output until you see which file contains "man sudo_root".

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I was wondering where it was coming from, and this answers it. Thanks! – mouche Jan 26 '11 at 6:06

This should not happen, unless you did not yet run any command using sudo (sudo echo "hello" should be enough).

If you did run a command using sudo and you don't see the file ~/.sudo_as_admin_successful, then you are probably hit by this bug.

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