PASSWORDLESS SUDO PASSWORD

Or if exists other parameter such as sudo -k that does not ask for the password (of course it does other thing) or other command to accomplish my goal. Problem I want avoid the password prompt part. So until here there is a clear difference and the solution but because I am working with Bash Shell and I need use Command Substitution is_user_sudo=$(sudo -v) # if is empty sudo can be used otherwise not If either it is valid or sudo's timeout is still valid it returns empty. If the user can use sudo then the sudo -v asks for the password. With sudo -v so far almost the solution happens the following:įor an user that does not have a configuration about sudoers the command returns Sorry, user may not run sudo on.

Problem: so with this approach is not possible really know through a command know if the user can use sudo - the solution is only viable to know if the sudo's timeout is still valid or not. And if the user can use sudo and if the sudo's timeout is still valid - it returns 1, otherwise it returns 0 And if the user can use sudo -whether sudo was not executed in the session or the sudo's timeout expired - it prints again the sudo: a password is required message.Īdditionally, with the correct solution (but for the other scenario) $(sudo -n uptime 2>&1 | grep 'load' | wc -l)įor an user without sudo permission always returns 0.

Sudo - is there a command to check if I have sudo and/or how much time is left?įor a user that does not have a configuration through in sudoers - therefore impossible to use sudo - the execution of sudo -n always prints in the terminal the sudo: a password is required message.

I want to check if a user is able to use sudo - but without the need to write the password - for bash shell scripts purposes.

Passwordless sudo