hi everyone:
i am new member for this forum, i am doing copy data from virtualbox A centos machine to virtualbox B centos machine.
first step i use mysqldump database xxx > xxx.sql
than send to B machine by scp xxx.sql @B machine IP /root.
but come to third step, the xxx.sql need import to B machine mysql database,the error occur again:
# can't connect to local mysql server through socket 'opt/lampp/lampp/mysql/mysql.sock

i really dun know how to solve it, use almost 3 hour cannot do solve it,
but i use win scp check the folder, i found mysql.sock is no at the
/opt/lampp/lampp/mysql/mysql.sock but at
/opt/lampp/var/mysql/mysql.socp

i dun know how to continue it, i hope those centos user help me to overcome
the issue. thank you very much!
centos version 5.5, xampp version 1.4

Before restore the database on your second machine, please confirm following
1. mysql up and running
2. database already created
3. mysql -u username -ppassword databasename < dump.sql

Check the my.cnf file. In that check what is the entry for socket file it should be /opt/lampp/var/mysql/mysql.sock if not change it to this.
Alternatively copy the file from /opt/lampp/var/mysql/ to /opt/lampp/lampp/mysql/ and try restarting mysql and then importing the database.

thanks you very much, the problem was solve,

answer is i cannot use mysql one word to create command
i need type directory mysql to create command like
/opt/lampp/bin/mysql -u root databasename < xxx.sql

thank a lot everyone!