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How to run a bash script via Cron Stack Overflow?
You need to use the actual full, absolute path to the script (e.g. /home/serverpilot/backupS3.sh ). If the crontab belongs to the same user whose home directory holds the script, you can use “$HOME”/backupS3.sh and the system will fill in their home directory path for you.
Why do I get bash script / bin / bash ^ m?
Since there is no interpretor, command, directory, or file called bash^M we get the bad interpreter: No such file or directory error. There are several options one may have to solve this problem. Since we know ^M is an illigal character the simple solution is to get rid of it.
Is there such a thing as a bad interpreter for Bash?
Have you ever been slapped with the /bin/bash^M: bad interpreter: No such file or directory error when trying to run a bash script, be it from cron or commandline? If your answer is yes then you have reached the right place. This error is more commond than you think and is quite harmless but nevertheless it is annoying.
Why does Bash not read a Unix file?
Unix uses different line endings therefore it can’t properly read the file you created on Windows. Bash scripts on the other hand are quite sensitive to line-endings. This is not just limited to the script itself. it extends to the data that the script processes.
Why is bash script not executing from crontab?
To get around that, just set your own PATH variable at the top of the script. I can see one mistake in your crontab file configuration. In the below config you are trying to call backup.sh as same as in your shell prompt with sh prefix which may not work in cron. change the owner as said in comment, if needed.
How to view all current cron jobs in Linux?
Cron is a Linux utility for scheduling scripts and commands. This guide will show you several options to view current cron jobs scheduled in the crontab list. To list all scheduled cron jobs for the current user, enter:
Why is my Cron script not running in terminal?
Maybe your cron script uses the command somecommand found in /opt/someApp/bin, which you’ve added to PATH in /etc/environment? cron does not read that file, so running somecommand from your script will fail when run with cron, but work when run in a terminal. To get around that, just set your own PATH variable at the top of the script.
How to automate server scripts with cron utility?
Servers can automatically perform tasks that you would otherwise have to perform yourself, such as running scripts. On Linux servers, the cron utility is the preferred way to automate the running of scripts. There are two main ways to get cron to run a script.
Why is cron job not running with same user?
The cron job doesn’t run with the same user with which you are executing the script manually – so it doesn’t have access to the same $PATH variable as your user which means it can’t locate the Java executable to execute the commands in the script. We should first fetch the value of PATH variable as below and then set it (export) in the script –
Why is my bash script not running with crontab?
In my case, the issue was that the script wasn’t marked as executable. To make sure it is, run the following command: Do crontab -e for whichever crontab you’re using and replace it with output of the above command. This should mirror most of your environment in case there is some missing path issue or something else.