how to create a cron job that runs on the first day of month [duplicate]

There are fields on my server's control panel like this

Minute - Hour - Day of month - Month - Day of the week - Command

How can I create a cron job runs on first day of the month with this fields?

This will run the command foo at 12:00AM on the first of every month

0 0 1 * * /usr/bin/foo

This article describes the various fields, look to the bottom of the page: http://en.wikipedia.org/wiki/Cron

To add this to your cron file, just use the command

crontab -e

Will run /usr/bin/foo at 12:10am on the first day of the month.

10 0 1 * * /usr/bin/foo

Will run /usr/bin/foo at 3:10am on every day.

10 3 * * * /usr/bin/foo

See http://www.scrounge.org/linux/cron.html

updated the crons, it was a copy paste error, thanks Joy Dutta!