How to add a bash script to a cron job?

I have a script called backup.sh:

#!/bin/bash
sudo zip -r /home/jazuly/backup.zip /var/lib/automysqlbackup/
cd /home/jazuly/backupscript/cp2google/
php cp2google.php /home/jazuly/backup.zip
cd ~
rm -f /home/jazuly/backup.zip

I made it executable:

sudo chmod +x backup.sh

Then I tried to edit cronwith crontab -e.

I add:

# m h dom mon dow command
0 0 * * * /home/jazuly/backup.sh

but when cron sends the backup.zip to my email, I download and open it, and the file is corrupt.

If I run the script manually with:

$ sudo chmod +x backup.sh
$ ./backup.sh

I can open the zip file.

3 Answers

You will need to use the full path in any cron executed script. So, don't do cd ~, give instead cd /home/jazuly

For further debugging, you can also redirect the output of the cron script to a file, with /home/jazuly/backup.sh 1> /home/jazuly/log.txt 2> /home/jazuly/err.txt

So the whole command:

# m h dom mon dow command
0 0 * * * /bin/bash /home/jazuly/backup.sh 1> /home/jazuly/log.txt 2> /home/jazuly/err.txt

Try to use full paths

#!/bin/bash
/usr/bin/zip -r /home/jazuly/backup.zip /var/lib/automysqlbackup/
/usr/bin/php /home/jazuly/backupscript/cp2google/cp2google.php /home/jazuly/backup.zip
rm -f /home/jazuly/backup.zip

And add /bin/bash in cron

# m h dom mon dow command
0 0 * * * /bin/bash /home/jazuly/backup.sh

And check permissions for files backup.zip, backupdatabaseterbaru-c771cd4f4fcf.p12

Here are the steps of how I fixed it:

1. Change Permission & Owner of var/lib/automysqlbackup to 777 & jazuly.jazuly.
2. Move all the folders & files from backupscript/cp2google/ to home/jazuly.
3. Use wait for every statement.

4. My final code:

   #!/bin/bash
   zip -r backup.zip /var/lib/automysqlbackup/
   wait
   php cp2google.php backup.zip
   wait
   rm -f backup.zip

   And my cron:

   0 0 * * * /home/jazuly/backup.sh

   to backup every midnight/day.

   I don't think there is a need to write the full path if the .sh file is in the same path with what you want to execute.