I have added the following entry:
*/1 * * * * /home/coddict/myapp-dev/spoolemailsender
and the shell that I am trying to execute (the file spoolemailsender) has the following:
#!/bin/sh
php app/console swiftmailer:spool:send --env=dev
Why isn't this script running every 1 minute? Do I need another command to get this cron job running?
You forgot to put user to execute cron job:
*/1 * * * * root /home/coddict/myapp-dev/./spoolemailsender
or
*/1 * * * * root sh /home/coddict/myapp-dev/spoolemailsender
root for example.
Assuming spoolemailsender is executable script and you don't need to do ./spoolemailsender or sh spoolemailsender
Related
I made a script in TypeScript that download data from some api and store inside a mongo DB.
If i run yarn start from the app folder it works well.
I would like to put this command in a cron job that will be executed every 5 minutes.
I try it with some sintax in crontab but ti doesn't work.
I try to put the call in a run.sh script but it doesn't work too.
*/5 * * * * cd /opt/app-folder/src/ && /home/username/.nvm/versions/node/v16.15.1/bin/ts-node main.ts
*/5 * * * * cd /opt/app-folder && /usr/bin/yarn start > /home/username/app-name-out.txt
*/5 * * * * /home/username/run.sh > /home/username/app-name-out.txt
*/5 * * * * /home/username/.nvm/versions/node/v16.15.1/bin/ts-node /opt/app-folder/src/main.ts > /home/username/app-name-out.txt
*/5 * * * * cd /opt/app-folder/src/ && /home/username/.nvm/versions/node/v16.15.1/bin/ts-node main.ts > /home/username/app-name-out.txt
Can someone help me to execute the main.ts every 5 minutes?
Thanks
I get rid of this problem.
There was 2 problems, the first related to the output redirection.
I fixed by redirect stdout in a file and stderr in another one.
The second was related the the $PATH of crontab: it was /usr/bin:/bin.
To fix it I log into my user where script works and I print my $PATH with echo $PATH.
I copied the value and I set it before the crontab line in crontab file.
This is what it looks like:
# Set the same path of user username to have the correct path in script
PATH=/home/username/.nvm/versions/node/v16.15.1/bin:/usr/local/bin:/usr/bin:/bin:/usr/local/games:/usr/games:/snap/bin
# Execute oracle every 5 minutes
*/5 * * * * /bin/sh /home/username/run.sh >> /home/username/app-name-info.txt 2>> /home/username/app-name-error.txt
Now it works.
I am trying to schedule a job using cron.
Following are the steps that i did:
sudo vi /etc/crontab
Added the following line :
* * * * * root /bin/ls >> corn_example
Still job is not getting triggered.
I suspect it's because you're not specifying the folder to 'ls' or a folder location for the example file to be create in.
I'd try:
* * * * * root /bin/ls /tmp/ >> /tmp/corn_example
Is it possible to make crontab run after one's execution. I read that cron jobs start from top, but run parallel, doesn't wait one to finish.
Is there any way that I can do like this?
For example, let's say I have 3 cron jobs.
*/5 * * * * job1
*/5 * * * * job2
*/5 * * * * job3
I want job2 to run after job1 has completed, and job3 after job2 completed.
You can have more than one command in a single crontab entry:
*/5 * * * * job1 ; job2 ; job3
In case you want to use the global crontab in /etc, it's simpler.
The main crontab file is /etc/crontab. It contains this type of instruction:
25 6 * * * root test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.daily )
so Linux uses run-parts; run-parts launch commands in alphabetical order, so just add numbers in the script like this:
01_MyFisrtScrip
02_MySecondScript
...
and so on... Please avoid using dots or other characters that are not legal for run-parts:
BAD NAME = 01_myscript.sh
GOOD NAME = 01_myscript
I am new to Linux and Ubuntu and I seldom have to use it. I am trying to make this PHP script to run every minute using cron, but firstly I wanted to make some tests.
I created an empty file at /var/www/html/ called test. I ran on terminal:
sudo crontab -e
And added this line:
0 * * * * rm /var/www/html/test
Then saved it and exited. It said "Installing new Crontab"
Nothing happened. Then I created a file bfile.sh that contained:
#!/bin/sh
rm /var/www/html/test
and added the following to crontab:
0 * * * * bash /var/www/html/bfile.sh
Still nothing happened.
What do I have to do to see anything happening from crontab? By the way I checked and the service is running
0 * * * * basically says "run this at 0th minute of every hour."
If you need cron to run your command every minute do * * * * *.
0 * * * * runs once every 1 hour. If you want to run every minute it should be */1 * * * *
You can also check the /var/log/cron file for any errors
Is there a way to enable and disable Crontab tasks using Bash/Shell?
So when the user starts Server 1, it will enable the Server 1 Crontab line and so on.
And when the user stops Server 1, the Server 1 Crontab line get disabled (#).
Is this possible and how?
Thanks in advance
*/1 * * * * Server 1 check
*/1 * * * * Server 2 check
*/1 * * * * Server 3 check
SERVERNUM=$1
To enable:
crontab -l | sed "/^#.*Server $SERVERNUM check/s/^#//" | crontab -
To disable:
crontab -l | sed "/^[^#].*Server $SERVERNUM check/s/^/#/" | crontab -
Transcript:
barmar#dev$ crontab -l
*/1 * * * * Server 1 check
*/1 * * * * Server 2 check
*/1 * * * * Server 3 check
barmar#dev$ crontab -l | sed '/^[^#].*Server 1 check/s/^/#/' | crontab -
barmar#dev$ crontab -l
#*/1 * * * * Server 1 check
*/1 * * * * Server 2 check
*/1 * * * * Server 3 check
barmar#dev$ crontab -l | sed '/^#.*Server 1 check/s/^#//' | crontab -
barmar#dev$ crontab -l
*/1 * * * * Server 1 check
*/1 * * * * Server 2 check
*/1 * * * * Server 3 check
I suggest you add your cron jobs to /etc/cron.d for every server one script. Then let the cron script scan for some marker file if the cron job should be executed.
As a quick and dirty fix, you can enable or disable the execute permission of the appropriate cron script.
E.g. if you like to prevent locate from automatically updating its database (which can be I/O consuming):
cd /etc/cron.daily
sudo chmod a-x locate
This may be against the cron framework, but it is quickly applied and it works in case of immediate needs.
this is a variant, I use a cronjob that loads it self every night. I just edit a file and it gets reloaded at 10pm everynight. You could make the reload happen more often. I keep a directory of files for each of nodes. The trick is make sure that nobody comments out the reload line.
0 22 * * * crontab /home/ME/cron_files/NODE