Sorry for any english mistakes; I'm trying to do my best.
I'm here because I'm having real troubles with mySQL. I downloaded successfully the software but I can't gain access to it. Even if mySQL seems to be running...
I tried to change the password via the command line but it didn't work either.
I used this /usr/local/mysql/bin/mysqladmin -u root password test .
But I always got this response:
mysqladmin: connect to server at 'localhost' failed error: 'Access denied for user 'root'@'localhost' (using password: NO)'
So what is wrong with my computer ? Or what am I doing wrong ?
I'm using the latest macOS Sierra version (10.12).
Thank you so much,
答案 0 :(得分：0)
首先，欢迎！你的英语很好，不需要道歉。
其次，我猜你不知道＆＃34; StackOverflow＆＃34;有一个名为＆＃34; ServerFault＆＃34;的堂兄网站，这个问题会更好。 （StackOverflow的目标是软件编程，而不是服务器/基础设施相关的。）
那就是说，我很乐意提供一些帮助。
MySQL 已在运行。您的屏幕截图显示它是。
您收到的错误不是由于MySQL未运行，而是由于无效的登录凭据。
您的命令（/usr/local/mysql/bin/mysqladmin -u root password test）正在请求更改密码，但您无法提供当前root密码。它既需要新旧......
两个明显的选择：
root密码，请提供密码（-p，然后系统会提示您）：/usr/local/mysql/bin/mysqladmin -u root -p password test 我在Debian / RedHat上做了很多次，但从未在MacOS上做过。 ＆＃34; B.5.3.2.2重置root密码：Unix和类Unix系统＆＃34; （见上述链接）下的说明应该适用于一些刺激。
如果你遇到困难，请随时回答这个问题......
答案 1 :(得分：0)
感谢您的回答，我不知道＆＃34; ServerFault＆＃34;，对我来说一切都有点新鲜。但感谢您的建议：）
话虽这么说，我仍然无法改变我的登录凭据。我尝试了你的第一个选项，因为我知道当前的root密码，但我还是卡住了。
当我尝试时，我得到了这个：
注意：＆＃34; xpyhMllo ****＆＃34;是我的 root密码和＆＃34; hello01＆＃34;会是新的。
/usr/local/mysql/bin/mysqladmin -u xpyhMllo****; -p hello01
/usr/local/mysql/bin/mysqladmin Ver 8.42 Distrib 5.7.16, for osx10.11 on x86_64
Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Administration program for the mysqld daemon.
Usage: /usr/local/mysql/bin/mysqladmin [OPTIONS] command command....
--bind-address=name IP address to bind to.
-c, --count=# Number of iterations to make. This works with -i
(--sleep) only.
-#, --debug[=#] This is a non-debug version. Catch this and exit.
--debug-check This is a non-debug version. Catch this and exit.
--debug-info This is a non-debug version. Catch this and exit.
-f, --force Don't ask for confirmation on drop database; with
multiple commands, continue even if an error occurs.
-C, --compress Use compression in server/client protocol.
--character-sets-dir=name
Directory for character set files.
--default-character-set=name
Set the default character set.
-?, --help Display this help and exit.
-h, --host=name Connect to host.
-b, --no-beep Turn off beep on error.
-p, --password[=name]
Password to use when connecting to server. If password is
not given it's asked from the tty.
-P, --port=# Port number to use for connection or 0 for default to, in
order of preference, my.cnf, $MYSQL_TCP_PORT,
/etc/services, built-in default (3306).
--protocol=name The protocol to use for connection (tcp, socket, pipe,
memory).
-r, --relative Show difference between current and previous values when
used with -i. Currently only works with extended-status.
--secure-auth Refuse client connecting to server if it uses old
(pre-4.1.1) protocol. Deprecated. Always TRUE
-s, --silent Silently exit if one can't connect to server.
-S, --socket=name The socket file to use for connection.
-i, --sleep=# Execute commands repeatedly with a sleep between.
--ssl-mode=name SSL connection mode.
--ssl Deprecated. Use --ssl-mode instead.
(Defaults to on; use --skip-ssl to disable.)
--ssl-verify-server-cert
Deprecated. Use --ssl-mode=VERIFY_IDENTITY instead.
--ssl-ca=name CA file in PEM format.
--ssl-capath=name CA directory.
--ssl-cert=name X509 cert in PEM format.
--ssl-cipher=name SSL cipher to use.
--ssl-key=name X509 key in PEM format.
--ssl-crl=name Certificate revocation list.
--ssl-crlpath=name Certificate revocation list path.
--tls-version=name TLS version to use, permitted values are: TLSv1, TLSv1.1
-u, --user=name User for login if not current user.
-v, --verbose Write more information.
-V, --version Output version information and exit.
-E, --vertical Print output vertically. Is similar to --relative, but
prints output vertically.
-w, --wait[=#] Wait and retry if connection is down.
--connect-timeout=#
--shutdown-timeout=#
--plugin-dir=name Directory for client-side plugins.
--default-auth=name Default authentication client-side plugin to use.
--enable-cleartext-plugin
Enable/disable the clear text authentication plugin.
--show-warnings Show warnings after execution
Variables (--variable-name=value)
and boolean options {FALSE|TRUE} Value (after reading options)
--------------------------------- ----------------------------------------
bind-address (No default value)
count 0
force FALSE
compress FALSE
character-sets-dir (No default value)
default-character-set auto
host (No default value)
no-beep FALSE
port 0
relative FALSE
secure-auth TRUE
socket (No default value)
sleep 0
ssl TRUE
ssl-verify-server-cert FALSE
ssl-ca (No default value)
ssl-capath (No default value)
ssl-cert (No default value)
ssl-cipher (No default value)
ssl-key (No default value)
ssl-crl (No default value)
ssl-crlpath (No default value)
tls-version (No default value)
user xpyhMlloM7
verbose FALSE
vertical FALSE
connect-timeout 43200
shutdown-timeout 3600
plugin-dir (No default value)
default-auth (No default value)
enable-cleartext-plugin FALSE
show-warnings FALSE
Default options are read from the following files in the given order:
/etc/my.cnf /etc/mysql/my.cnf /usr/local/mysql/etc/my.cnf ~/.my.cnf
The following groups are read: mysqladmin client
The following options may be given as the first argument:
--print-defaults Print the program argument list and exit.
--no-defaults Don't read default options from any option file,
except for login file.
--defaults-file=# Only read default options from the given file #.
--defaults-extra-file=# Read this file after the global files are read.
--defaults-group-suffix=#
Also read groups with concat(group, suffix)
--login-path=# Read this path from the login file.
Where command is a one or more of: (Commands may be shortened)
create databasename Create a new database
debug Instruct server to write debug information to log
drop databasename Delete a database and all its tables
extended-status Gives an extended status message from the server
flush-hosts Flush all cached hosts
flush-logs Flush all logs
flush-status Clear status variables
flush-tables Flush all tables
flush-threads Flush the thread cache
flush-privileges Reload grant tables (same as reload)
kill id,id,... Kill mysql threads
password [new-password] Change old password to new-password in current format
ping Check if mysqld is alive
processlist Show list of active threads in server
reload Reload grant tables
refresh Flush all tables and close and open logfiles
shutdown Take server down
status Gives a short status message from the server
start-slave Start slave
stop-slave Stop slave
variables Prints variables available
version Get version info from server
-bash: -p: command not found
我真的不知道该怎么做，我没想到更改密码和启动MySQL会很难
感谢您抽出时间帮助自己