Sudo without password
How to use sudo command in Linux without the password prompt, by adding a line to the sudoers file.
Removing the sudo password prompt is done by editing the /etc/sudoers file, however you should never edit this file directly, but instead use sudo visudo to do so.
The file will look something like this:
# User privilege specification
root ALL=(ALL:ALL) ALL
# Members of the admin group may gain root privileges
%admin ALL=(ALL) ALL
# Allow members of group sudo to execute any command
%sudo ALL=(ALL:ALL) ALL
There’s two ways to disable the password prompt.
Disable password prompt for a specific user
Use sudo visudo and add the following line to /etc/sudoers file:
username ALL=(ALL) NOPASSWD: ALL
Disable password prompt for all sudoers
Use sudo visudo and edit the %sudo line in /etc/sudoers file:
%sudo ALL=(ALL:ALL) NOPASSWD: ALL
After editing /etc/sudoers check the syntax is OK.
visudo -c
/etc/sudoers: parsed OK
/etc/sudoers.d/README: parsed OK