linux - CentOS root user crontab for mysqldump

I am using CentOS 6.6.
I am trying to set up a crontab. I made an .sh script which runs perfectly when executed manually.
The command is following:

mysqldump --skip-lock-tables --single-transaction --hex-blob --flush-logs --master-data=2 -u root -p'password' database1 > database2.sql

However, when I tried to set it up in /etc/crontab file, it won't run.
Here are the contents of crontab file.

SHELL=/bin/bash
PATH=/sbin:/bin:/usr/sbin:/usr/bin
MAILTO=root
HOME=/

# For details see man 4 crontabs

# Example of job definition:
# .---------------- minute (0 - 59)

# |  .------------- hour (0 - 23)
# |  |  .---------- day of month (1 - 31)
# |  |  |  .------- month (1 - 12) OR jan,feb,mar,apr ...
# |  |  |  |  .---- day of week (0 - 6) (Sunday=0 or 7) OR sun,mon,tue,wed,thu,fri,sat
# |  |  |  |  |
# *  *  *  *  * user-name command to be executed
* * * * * root /home/user/public_html/default1.sh

Also, I would like this script to execute in directory

/home/user/public_html

My script is called default1.sh, and I put it in /home/user/public_html directory.

My goal is to execute this command (or now default1.sh script) as a root user in /home/user/public_html every minute.

Answer

There several things you need to check:

1. Make sure your script has an appropriate permissions. You need to have an x (at least for user) to be executable.


2. Make sure mysqldump is within crontab PATH. Otherwise, specify absolute path in your script.


3. I recommend to specify absolute path for output file to confirm whether it is generated successfully or not. Otherwise, you may get confused about file location.