Linux CentOS 5.3: how come I can't use the sudo command to run an app?

Hello Experts

Logged in as user1, I am running a command:
sudo xyz.sh
it asks me for the root password which I input; but it tells me that the passwd is incorrect.
Yet, if I am able to log in as root using the same passwd.

Why doesn't it let me use the 'sudo' command as user1?

Please help I am in the middle of an oracle install...

thx
epifanio67Asked:
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medveddCommented:
You should have this line in /etc/sudoers file

user1        ALL=(ALL)       NOPASSWD: ALL
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epifanio67Author Commented:
cool.... I got it... thx
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