bash script MYSQL Running?

Question

I have the following script, which when I break it down it works. However when I run it it tell me that mysql is not running. and starts the mysql server.

When I run pgrep mysqld | wc -l pgrep mysqld | wc -l it returns 2 but for some reason the script still runs

echo "MySQL is down.";
            service mysqld start

Here is the original script.

#!/bin/bash
UP=$(pgrep mysqld | wc -l);
if [ "$UP" -ne 1 ];
then
        echo "MySQL is down.";
        service mysqld start

else
        echo "All is well.";
fi

Answer 1

You are testing the output for 1, but it returns 2 as you wrote. Change -ne condition to -lt.

Anyway, I would use something like this, to see the mysql status, instead of the pgrep: service mysql status .