Scheduling jobs after midnight
matt.sturdy at gmail.com
Thu Dec 4 14:04:02 UTC 2014
Hi Charles (don't forget to reply to the whole list)
On 4 December 2014 at 11:54, Charles Irons <irons.charles at gmail.com> wrote:
> Thanks Matt and Colin
> 1. Man cron has 160 lines of notes that I don't understand.
> 2. What is the name to insert for Software Updater?
> 3. How do I authenticate for Software Updater?
> 4. How do I set a time to run?
> Sorry but I am not really competent with terminal operation.
There are a lot of good tutorials on the internet that will help you more
than I can in an email. Here's a good starting place:
In short, "crontab" is the command you want to consult/edit the jobs.
The jobs executed by the current user:
*crontab -l *# list them in the terminal
*crontab -e *# edit them in your default editor
The jobs executed by superuser (which you will need to be in order to
*sudo crontab -l *# to list them
*sudo crontab -e *# to edit them
Each command is entered as a new line.
Leave a blank line at the end of the file (it should warn you if you don't
The format for each line is (each parameter separated by a single space):
minute (0-59), hour (0-23, 0 = midnight), day (1-31), month (1-12), weekday
(0-6, 0 = Sunday), command
Example line to run a command at 01:00:
*00 01 * * * /usr/bin/somedirectory/somecommand*
Hope that helps you get started.
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