MySQL client does not enter user name and password 2 methods for directly connecting to a database _mysql

There are 2 ways
One, can modify My.ini configuration parameters (Linux below is MY.CNF);
[Quote] [Client]
port=3306
Default-character-set=utf8
Host=localhost
User=root
Password=1[/quote]
The exact other parameters can be modified here
Second, can modify environment variables
Mysql_host represents host Name
User is username
Mysql_pwd for password
More parameters Please check the MySQL help document yourself, below is the English form

Variable	Description
CXX	The name of your C + + compiler (for running Configure ).
CC	The name of your C compiler (for running Configure ).
CFLAGS	Flags for your C compiler (for running Configure ).
CXXFLAGS	Flags for your C + + compiler (for running Configure ).
DBI_USER	The default user name for Perl DBI.
DBI_TRACE	Trace options for Perl DBI.
HOME	The default path for the MySQL history file is $HOME/.mysql_history .
LD_RUN_PATH	Used to specify the location of libmysqlclient.so .
MYSQL_DEBUG	Debug Trace options when debugging.
MYSQL_GROUP_SUFFIX	Option Group suffix value (like specifying --defaults-group-suffix ).
MYSQL_HISTFILE	The path to the MySQL history file. If This variable is set, its value overrides the default for $HOME/.mysql_history .
MYSQL_HOME	The path to the directory in which the server-specific my.cnf file resides (as of the MySQL 5.0.3).
MYSQL_HOST	The default host name used by the MySQL command-line client.
MYSQL_PS1	The command prompt to use in the MySQL command-line client.
MYSQL_PWD	The default password when connecting to mysqld . Note the using this is insecure. 5.5.6.2, "End-User guidelines for Password security."
MYSQL_TCP_PORT	The default TCP/IP port number.
MYSQL_UNIX_PORT	The default Unix socket file name; Used for connections to localhost .
PATH	Used by the shell to find MySQL programs.
TMPDIR	The directory where temporary files are created.
TZ	This should is set to your the local time zone. b.1.4.6, "Time Zone Problems".
UMASK	The User-file creation mode when creating files. Note following table.
UMASK_DIR	The User-directory creation mode when creating directories. Note following table.
USER	The default user name on Windows and NetWare used when connecting to mysqld .