how to remove sudo access from a user ?

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http://www.unix.com – Hello Folks, I need help on removing sudo access on one id but first of all, can i confirm that the user below is having sudo access ? if he did have sudo access, how to remove ? thanks Code: alrsprd3:root-/etc> more sudoers | grep fzcx0l fzcx0l  ALL=(ALL) ALL alrsprd3:root-/etc> (HowTos)