mysqldump doesn't work in crontab

Question

I\'m trying to add a cronjob in the crontab (ubuntu server) that backups the mysql db.

Executing the script in the terminal as root works well, but inserted in the c

Answer 1

Alternatively you can create a custom command mycommand. To which you can add more options. You must give execute permissions.

It is preferable to have a folder where they store all your backups, in this case using a writable folder "backup" which first create in "your home" for example.

My command in "usr/local/bin/mycommand":

#!/bin/bash
MY_USER="your_user"
MY_PASSWORD="your_pass"
MY_HOME="your_home"
case $1 in 
"backupall")
    cd $MY_HOME/backup
    mysqldump --opt --password=$MY_PASSWORD --user=$MY_USER  --all-databases > bckp_all_$(date +%d%m%y).sql
    tar -zcvf bckp_all_$(date +%d%m%y).tgz bckp_all_$(date +%d%m%y).sql
    rm bckp_all_$(date +%d%m%y).sql;;
*)  echo "Others";;
esac

Cron: Runs the 1st day of each month.

0 0 1 * * /usr/local/bin/mycommand backupall

I hope it helps somewhat.