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Command at /etc/crontab not run at reboot?
Cron job to run python script at reboot does not workCronjob, every 20 minutes. Starting direct after rebootDaemon or crontab?Crontab Output problemcrontab command not run@reboot works with command but not script - CronCrontab script not runningWhy is my crontab command not working?How to WGET Cronjob to save a webpage periodicallyCrontab for an rsync backup with ssh connectionCrontab won't run command @reboot
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I have used the crontab to run a command that repeats every 30 minutes. From the tutorials, I written the following command to /etc/crontab
*/30 * * * * root /usr/bin/python /home/pi/do.py>>/home/pi/output
As per the tutorials found on google, it should run for 0,30,60...minutes. But it won't run at reboot. However, it runs for every 30 minutes after reboot.
If I use the command @reboot /usr/bin/python /home/pi/do.py>>/home/pi/output, then it will run at reboot. But actually, I need to run the command at boot and also for every 30 minutes.
How can I configure the same for a run at reboot also?
14.04 command-line cron
asked May 6 at 10:23
mcvmcv
185 bronze badges
|
show 2 more comments
I have used the crontab to run a command that repeats every 30 minutes. From the tutorials, I written the following command to /etc/crontab
*/30 * * * * root /usr/bin/python /home/pi/do.py>>/home/pi/output
As per the tutorials found on google, it should run for 0,30,60...minutes. But it won't run at reboot. However, it runs for every 30 minutes after reboot.
If I use the command @reboot /usr/bin/python /home/pi/do.py>>/home/pi/output, then it will run at reboot. But actually, I need to run the command at boot and also for every 30 minutes.
How can I configure the same for a run at reboot also?
14.04 command-line cron
asked May 6 at 10:23
mcvmcv
185 bronze badges
Use this article to achieve your result: cyberciti.biz/faq/linux-execute-cron-job-after-system-reboot
– Novice
May 6 at 10:32
Possible duplicate of Cron job to run python script at reboot does not work
– Novice
May 6 at 10:34
@Novice, I can run the command@reboot /usr/bin/python /home/pi/do.py>>/home/pi/outputwithout any problem. Don't make it as same question.
– mcv
May 6 at 10:53
Maybe Cronjob, every 20 minutes. Starting direct after reboot is of help. It suggests replacing thecronjobwith asystemd timerthat is able to do both: run at boot time and every N minutes.
– PerlDuck
May 6 at 10:58
@PerlDuck, Which method will be better to use cron or systemd timer ?
– mcv
May 6 at 11:07
|
show 2 more comments
I have used the crontab to run a command that repeats every 30 minutes. From the tutorials, I written the following command to /etc/crontab
*/30 * * * * root /usr/bin/python /home/pi/do.py>>/home/pi/output
As per the tutorials found on google, it should run for 0,30,60...minutes. But it won't run at reboot. However, it runs for every 30 minutes after reboot.
If I use the command @reboot /usr/bin/python /home/pi/do.py>>/home/pi/output, then it will run at reboot. But actually, I need to run the command at boot and also for every 30 minutes.
How can I configure the same for a run at reboot also?
14.04 command-line cron
asked May 6 at 10:23
mcvmcv
185 bronze badges
I have used the crontab to run a command that repeats every 30 minutes. From the tutorials, I written the following command to /etc/crontab
*/30 * * * * root /usr/bin/python /home/pi/do.py>>/home/pi/output
As per the tutorials found on google, it should run for 0,30,60...minutes. But it won't run at reboot. However, it runs for every 30 minutes after reboot.
If I use the command @reboot /usr/bin/python /home/pi/do.py>>/home/pi/output, then it will run at reboot. But actually, I need to run the command at boot and also for every 30 minutes.
How can I configure the same for a run at reboot also?
14.04 command-line cron
14.04 command-line cron
asked May 6 at 10:23
mcvmcv
185 bronze badges
asked May 6 at 10:23
mcvmcv
185 bronze badges
edited May 6 at 10:56
mcv
asked May 6 at 10:23
mcvmcv
185 bronze badges
asked May 6 at 10:23
mcvmcv
185 bronze badges
asked May 6 at 10:23
mcvmcv
185 bronze badges
185 bronze badges
Use this article to achieve your result: cyberciti.biz/faq/linux-execute-cron-job-after-system-reboot
– Novice
May 6 at 10:32
Possible duplicate of Cron job to run python script at reboot does not work
– Novice
May 6 at 10:34
@Novice, I can run the command@reboot /usr/bin/python /home/pi/do.py>>/home/pi/outputwithout any problem. Don't make it as same question.
– mcv
May 6 at 10:53
Maybe Cronjob, every 20 minutes. Starting direct after reboot is of help. It suggests replacing thecronjobwith asystemd timerthat is able to do both: run at boot time and every N minutes.
– PerlDuck
May 6 at 10:58
@PerlDuck, Which method will be better to use cron or systemd timer ?
– mcv
May 6 at 11:07
|
show 2 more comments
Use this article to achieve your result: cyberciti.biz/faq/linux-execute-cron-job-after-system-reboot
– Novice
May 6 at 10:32
Possible duplicate of Cron job to run python script at reboot does not work
– Novice
May 6 at 10:34
@Novice, I can run the command@reboot /usr/bin/python /home/pi/do.py>>/home/pi/outputwithout any problem. Don't make it as same question.
– mcv
May 6 at 10:53
Maybe Cronjob, every 20 minutes. Starting direct after reboot is of help. It suggests replacing thecronjobwith asystemd timerthat is able to do both: run at boot time and every N minutes.
– PerlDuck
May 6 at 10:58
@PerlDuck, Which method will be better to use cron or systemd timer ?
– mcv
May 6 at 11:07
Use this article to achieve your result: cyberciti.biz/faq/linux-execute-cron-job-after-system-reboot
– Novice
May 6 at 10:32
Use this article to achieve your result: cyberciti.biz/faq/linux-execute-cron-job-after-system-reboot
– Novice
May 6 at 10:32
Possible duplicate of Cron job to run python script at reboot does not work
– Novice
May 6 at 10:34
Possible duplicate of Cron job to run python script at reboot does not work
– Novice
May 6 at 10:34
@Novice, I can run the command
@reboot /usr/bin/python /home/pi/do.py>>/home/pi/output without any problem. Don't make it as same question.– mcv
May 6 at 10:53
@Novice, I can run the command
@reboot /usr/bin/python /home/pi/do.py>>/home/pi/output without any problem. Don't make it as same question.– mcv
May 6 at 10:53
Maybe Cronjob, every 20 minutes. Starting direct after reboot is of help. It suggests replacing the
cronjob with a systemd timer that is able to do both: run at boot time and every N minutes.– PerlDuck
May 6 at 10:58
Maybe Cronjob, every 20 minutes. Starting direct after reboot is of help. It suggests replacing the
cronjob with a systemd timer that is able to do both: run at boot time and every N minutes.– PerlDuck
May 6 at 10:58
@PerlDuck, Which method will be better to use cron or systemd timer ?
– mcv
May 6 at 11:07
@PerlDuck, Which method will be better to use cron or systemd timer ?
– mcv
May 6 at 11:07
|
show 2 more comments
2 Answers
2
active
oldest
votes
You can’t combine both in one cron line, but there’s nothing wrong with simply having two lines, one for the start at boot and one for running the command every 30 minutes:
*/30 * * * * root /usr/bin/python /home/pi/do.py>>/home/pi/output
@reboot root /usr/bin/python /home/pi/do.py>>/home/pi/output
answered May 6 at 11:11
dessertdessert
29.3k7 gold badges88 silver badges121 bronze badges
add a comment
|
Use the following:
@reboot root /usr/bin/python /home/pi/do.py>>/home/pi/output
edited May 6 at 17:34
double-beep
1751 gold badge2 silver badges10 bronze badges
answered May 6 at 10:30
pubpub
111 bronze badge
It will not run at every 30 minutes after reboot.
– mcv
May 6 at 10:48
add a comment
|
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
You can’t combine both in one cron line, but there’s nothing wrong with simply having two lines, one for the start at boot and one for running the command every 30 minutes:
*/30 * * * * root /usr/bin/python /home/pi/do.py>>/home/pi/output
@reboot root /usr/bin/python /home/pi/do.py>>/home/pi/output
answered May 6 at 11:11
dessertdessert
29.3k7 gold badges88 silver badges121 bronze badges
add a comment
|
You can’t combine both in one cron line, but there’s nothing wrong with simply having two lines, one for the start at boot and one for running the command every 30 minutes:
*/30 * * * * root /usr/bin/python /home/pi/do.py>>/home/pi/output
@reboot root /usr/bin/python /home/pi/do.py>>/home/pi/output
answered May 6 at 11:11
dessertdessert
29.3k7 gold badges88 silver badges121 bronze badges
add a comment
|
You can’t combine both in one cron line, but there’s nothing wrong with simply having two lines, one for the start at boot and one for running the command every 30 minutes:
*/30 * * * * root /usr/bin/python /home/pi/do.py>>/home/pi/output
@reboot root /usr/bin/python /home/pi/do.py>>/home/pi/output
answered May 6 at 11:11
dessertdessert
29.3k7 gold badges88 silver badges121 bronze badges
You can’t combine both in one cron line, but there’s nothing wrong with simply having two lines, one for the start at boot and one for running the command every 30 minutes:
*/30 * * * * root /usr/bin/python /home/pi/do.py>>/home/pi/output
@reboot root /usr/bin/python /home/pi/do.py>>/home/pi/output
answered May 6 at 11:11
dessertdessert
29.3k7 gold badges88 silver badges121 bronze badges
answered May 6 at 11:11
dessertdessert
29.3k7 gold badges88 silver badges121 bronze badges
answered May 6 at 11:11
dessertdessert
29.3k7 gold badges88 silver badges121 bronze badges
answered May 6 at 11:11
dessertdessert
29.3k7 gold badges88 silver badges121 bronze badges
29.3k7 gold badges88 silver badges121 bronze badges
add a comment
|
add a comment
|
Use the following:
@reboot root /usr/bin/python /home/pi/do.py>>/home/pi/output
edited May 6 at 17:34
double-beep
1751 gold badge2 silver badges10 bronze badges
answered May 6 at 10:30
pubpub
111 bronze badge
It will not run at every 30 minutes after reboot.
– mcv
May 6 at 10:48
add a comment
|
Use the following:
@reboot root /usr/bin/python /home/pi/do.py>>/home/pi/output
edited May 6 at 17:34
double-beep
1751 gold badge2 silver badges10 bronze badges
answered May 6 at 10:30
pubpub
111 bronze badge
It will not run at every 30 minutes after reboot.
– mcv
May 6 at 10:48
add a comment
|
Use the following:
@reboot root /usr/bin/python /home/pi/do.py>>/home/pi/output
edited May 6 at 17:34
double-beep
1751 gold badge2 silver badges10 bronze badges
answered May 6 at 10:30
pubpub
111 bronze badge
Use the following:
@reboot root /usr/bin/python /home/pi/do.py>>/home/pi/output
edited May 6 at 17:34
double-beep
1751 gold badge2 silver badges10 bronze badges
answered May 6 at 10:30
pubpub
111 bronze badge
edited May 6 at 17:34
double-beep
1751 gold badge2 silver badges10 bronze badges
edited May 6 at 17:34
double-beep
1751 gold badge2 silver badges10 bronze badges
edited May 6 at 17:34
double-beep
1751 gold badge2 silver badges10 bronze badges
1751 gold badge2 silver badges10 bronze badges
answered May 6 at 10:30
pubpub
111 bronze badge
answered May 6 at 10:30
pubpub
111 bronze badge
answered May 6 at 10:30
pubpub
111 bronze badge
111 bronze badge
It will not run at every 30 minutes after reboot.
– mcv
May 6 at 10:48
add a comment
|
It will not run at every 30 minutes after reboot.
– mcv
May 6 at 10:48
It will not run at every 30 minutes after reboot.
– mcv
May 6 at 10:48
It will not run at every 30 minutes after reboot.
– mcv
May 6 at 10:48
add a comment
|
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Use this article to achieve your result: cyberciti.biz/faq/linux-execute-cron-job-after-system-reboot
– Novice
May 6 at 10:32
Possible duplicate of Cron job to run python script at reboot does not work
– Novice
May 6 at 10:34
@Novice, I can run the command
@reboot /usr/bin/python /home/pi/do.py>>/home/pi/outputwithout any problem. Don't make it as same question.– mcv
May 6 at 10:53
Maybe Cronjob, every 20 minutes. Starting direct after reboot is of help. It suggests replacing the
cronjobwith asystemd timerthat is able to do both: run at boot time and every N minutes.– PerlDuck
May 6 at 10:58
@PerlDuck, Which method will be better to use cron or systemd timer ?
– mcv
May 6 at 11:07