How to set crontab using command prompt?

Question

How to set cronjob/crontab in server using command prompt. Give sample command or sample links.

Answer 1

crontab -e

edit crontab interactively with your default editor

crontab <file>

replace crontab with contents of given file

General usage help is displayed if you run crontab without arguments, for example:

crontab: usage error: file name must be specified for replace
usage:  crontab [-u user] file
    crontab [-u user] { -e | -l | -r }
    	(default operation is replace, per 1003.2)
    -e	(edit user's crontab)
    -l	(list user's crontab)
    -r	(delete user's crontab)
    -i	(prompt before deleting user's crontab)

More help available via "man crontab".

Answer 2

crontab -e

will work wonders when you’re trying to edit your crontab.

Answer 3

The pimlottc's answer looks perfect(+1). But I will left you a link to a little tutorial because you asked for it. cron&crontab-howto