How to run a command without sudo?

Question

I want to add a line in the crontab (on my local machine) which will run every five minutes. My problem is the command I am going to use requires sudo :

sudo indexer --config /usr/local/etc/sphinx.conf --all --rotate

Is there a way I can run the command without using sudo and without prompting for password ?

Thanks!

Answer 1

Put it in the crontab of root

sudo crontab -e

There you can put

indexer --config /usr/local/etc/sphinx.conf --all --rotate

All commands in this crontab will be executed as root. If you just du crontab -e as your current user, they will be executed under your users permissions.

Answer 2

Just append your command to the sudoer file list by using cmd visudo(this cmd requires root priviledge) as below:

<YOUR_USER_NAME> ALL = NOPASSWD:<ABSOLUTE-PATH-TO-CMD>

Take care of the ABSOLUTE-PATH-TO-CMD,It may become a security hole.