无法使用 crontab 运行.sh 脚本

Question

i am trying to schedule my script.sh script to run every day from monday to friday at 9:35 am. When I run my script with./ directly in the terminal everything works fine. But when I tried to run in the crontab -e nothing worked. Here is the list of what I tried:

- * * * * * root /bin/script.sh
- * * * * * root sh /bin/script.sh
- * * * * * root bash /bin/script.sh
- * * * * * root / bin / sh /bin/script.sh
- * * * * * /bin/script.sh
- * * * * * sh /bin/script.sh
- * * * * * bash /bin/script.sh
- * * * * * / bin / sh /bin/script.sh

I put an execution every minute just for the test. Otherwise the final command will be something like this:

- 35 9 * * 1-5 /bin/script.sh

I must have forgotten an important step or something. Of course I restartcron with each modification with:

- service cron restart

Answer 1

That should work

* * * * * /bin/bash /bin/script.sh

You can also add a shebang in the beginning of your script

#!/bin/bash

... your script here ...

This will let you execute the script directly by calling it with /bin/script.sh The system will know that he need to start bash to execute it You will need to get execution access right

chmod +x /bin/script.sh

This will give execution rights to anyone, check chmod man if you want to give execution access to only owner

The cron will be just like that

* * * * * /bin/script.sh

Keep in mind you will not get any output with a cron, you can still redirect stdout to a log file

* * * * * /bin/script.sh >> /var/log/myscript.log

If you use crontab -e as root, you don't need to use sudo or anything like that