script cannot connect to Mysql server Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)

Question

Mysql server seems working properly and running also i can connect to the database via ssh command, here's the my.cnf file directives:

[mysqld]
#port=3306
datadir=/home/mysql
socket=/home/mysql/mysql.sock
user=mysql
# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0

[mysqld_safe]
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid
socket=/home/mysql/mysql.sock

[client]
#port=3306
socket=/home/mysql/mysql.sock

im trying to install a script it says :

Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)