Linux Backup Data command

One, backup data command:
Mysqldump-u root-p zzqndyy_emr |gzip-9 >/root/6yc_zzqndyy_emr-20180115.gz

Error:
1. Error 1045
1045 Access denied for user ' root ' @ ' localhost ' (using Password:yes)
How to resolve:
In/etc/my. CNF file
[Mysqld], add skip_grant_tables after restart

2. Error 2002
Mysqldump:got Error:2002:can ' t connect to local MySQL server through sockets '/tmp/mysql.sock ' (2) when trying to Connec T
How to resolve:
Enter the following command:
Ln-fs/usr/local/mysql/bin/mysqldump/usr/bin
Ln-s/var/lib/mysql/mysql.sock/tmp/mysql.sock

Second, remote transfer backup files:
Scp/root/10wz_dbemr_txxrmyy-20180115.gz 10.253.1.16:/data/qianzhiji/20180115/10wz_dbemr_txxrmyy-20180115.gz

Linux Backup Data command