Really quickly: Would anyone know how I might add a crontab entry via a script (bash)? I'm attempting to write one to schedule commands at certain times. Is this possible? Thanks.
-Jose
Jose Alburquerque wrote:
Really quickly: Would anyone know how I might add a crontab entry via a script (bash)? I'm attempting to write one to schedule commands at certain times. Is this possible? Thanks.
Are you sure you don't want 'at' instead of cron? (man at) It seems that might be more appropriate based on your description...
-te
Troy Engel wrote:
Jose Alburquerque wrote:
Really quickly: Would anyone know how I might add a crontab entry via a script (bash)? I'm attempting to write one to schedule commands at certain times. Is this possible? Thanks.
Are you sure you don't want 'at' instead of cron? (man at) It seems that might be more appropriate based on your description...
-te
Thanks for the 'at' information. I really did not know that this command existed. It looks like it would be very useful for my task. However, I also need to schedule "recurring" processes so I think that I still need to use a crontab entry.
} } Really quickly: Would anyone know how I might add a crontab entry via a } script (bash)? I'm attempting to write one to schedule commands at } certain times. Is this possible? Thanks. } } -Jose
if i remember right, i used to make cron looking text files and then as a non-root user you could test it by redirecting that file using the crontab command
man crontab
will show syntax
after you test do a
crontab -l
will list show the entry if i remember right
see if it puts it in the area you desire and modify your thinking and try again
i was gonna test it for you and report back yet i dont think it would be too difficult regardless, apologies i dont have more time for it right at this moment
- rh
-- Robert Hanson - Abba Communications Computer & Internet Services (509) 624-7159 - www.abbacomm.net
Robert Hanson wrote:
} } Really quickly: Would anyone know how I might add a crontab entry via a } script (bash)? I'm attempting to write one to schedule commands at } certain times. Is this possible? Thanks. } } -Jose
if i remember right, i used to make cron looking text files and then as a non-root user you could test it by redirecting that file using the crontab command
man crontab
will show syntax
You're right! The man page says that crontab accepts an optional file argument (ie. crontab [-u user] file). So if I do 'echo "30 18 12 1 * echo This text should be mailed to me at 6:30pm on 1/12" | crontab -', this will place that entry in crontab. However, the entire previous crontab will be replaced by this single entry. But thanks so much this really helps. I'm sure I can now figure out a way to "append" to an already existent crontab using 'crontab -l', 'echo' or something of the sort. Thanks again.
after you test do a
crontab -l
will list show the entry if i remember right
see if it puts it in the area you desire and modify your thinking and try again
i was gonna test it for you and report back yet i dont think it would be too difficult regardless, apologies i dont have more time for it right at this moment
- rh
-- Robert Hanson - Abba Communications Computer & Internet Services (509) 624-7159 - www.abbacomm.net
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Jose Alburquerque -
Robert Hanson -
Troy Engel