/Shell/Bash/Sudo command without giving password

Sudo command without giving password

echo "$USER ALL=(ALL) NOPASSWD:ALL" | sudo tee -a /etc/sudoers

Source: askubuntu.com

Run command without sudo password

# Run `visudo` to edit the file `/etc/sudoers`:
sudo visudo

# For example, to allow the `shutdown` command to run without a password. 
# Add this to the file, replacing `myusername` with your own login name for your PC:
myusername ALL = NOPASSWD: /sbin/shutdown

# NOTE: `sudo` is still required to run the command so you still have to specify the command as:
sudo shutdown

Source: linux.byexamples.com

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