crontab -e
You can schedule jobs using cron and the /etc/crontab file, or you can use the "at" command
Use the cron jobs See /etc/cron.daily /etc/cron.weekly /etc/cron.hourly /etc/crontab and the command crontab
There are two standard job schedulers in Unix - 'at' and 'cron'. Neither can be answered in a short answer so it is suggested that you do an internet search on either of these two commands, or use the 'man' or 'info' command on 'at' or 'cron' on your Unix/Linux system.
In the cron table, the last field contains the absolute path-name to the command that is to be executed. This field specifies the script or command that will run according to the schedule defined by the preceding time and date fields. It is crucial to provide the full path to ensure that the cron job can locate and execute the command correctly.
It is very possible to get a job at Cron. The company Find Me Jobs is very good at locating jobs in any location. They can be contacted by email or phone, and have a long list of jobs in any city.
/var/spool/cron/crontabs/ - cron files of users /var/adm/cron/ - other cron settings
Crons allow a computer to allow users to input mail under mailboxes that are specifically dedicated for the email. It also schedules jobs for the computer to process.
In Linux you have Cron which manages most of the scheduling. Of course if you mean scheduling that happens when a user shutdown or starts up a computer you would be talking about init which is the first program started when booting Linux. Alternatively you could use another scheduler such as atd if you are used to an UNIX like scheduler system.
Unix Cron is a daemon ('service') that runs in the background and runs the commands specified in the crontab file at the intervals specified within. This allows someone to easily run a program or script every hour, day, week, etc. The crontab file can be found in two places. Typically, it is located in the /etc directory. Cron also supports multi-user setups, in which case you will also find other 'crontab' files in some distribution-specific location (I believe /var/spool/cron, named after the user that owns the file). More information on Cron can be found by Googling "cron" or "crontab".
http://en.wikipedia.org/wiki/CRON-diet
There are two main ways to schedule a "task" or "job" to run at a later time: cron and at. = CRON = The CRON utility has existed in various forms for decades and is almost guaranteed to be installed on your system. It's mainly for running periodic tasks, such as weekly backups or monthly maintenance scripts. Your system also likely has an example file already set up (/etc/crontab) or directories under /etc (such as /etc/cron.daily, etc) where you can put scripts to run. Most Linux distributions make good use of the Cron daemon (another word for service) so you can hunt around in that file and directories for examples. You can also type `man cron`, `man crontab`, etc at the command line for specifics on how to configure the file. Once you add your script filename to the file or place it in the preconfigured /etc/cron.whatever directory you should be all set! = AT = The AT utility is designed for run-once events. For example, if you've got a big script that'll hog system resources you can schedule it to run at 3am when nobody's on the system: at -f myScript.sh 3am tomorrow
MLB player C.J. Cron is 6'-04''.