Stop Telling sudo Your Password

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If you get tired of typing your password for sudo, but you don’t
want (or don’t have permissions) to put NOPASSWD in your
sudoers file, you can use the following procedure to update the
sudo password timestamp and avoid typing your password.

Step 1) Create $HOME/bin/sudo-hack.sh:

#!/bin/bash
while [ true ];
do
sudo -u root /bin/true > /dev/null 2> /dev/null
sleep 60
done

Step 2) Do an initial run of sudo to set its password timestamp:

$ sudo -u root /bin/true
Password: *******

Step 3) Start $HOME/bin/sudo-hack.sh in the background:

$ HOME/bin/sudo-hack.sh &

Now you can use sudo without getting a password prompt, regardless of how long it’s been since the last time you ran sudo.

Note: there are most certainly security implications related to using this procedure; of course, that’s also true of using NOPASSWD in the sudoers file.

Source of Information : Linux Journal Issue 180 April 2009

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