在osx命令行中使用Mysql - 找不到命令？

Question

I'm trying to get mysql up and running on my mac osx 10.9.5. I've installed the latest version 14.14 5.6.21 community server. I've gone to system preferences and started the mysql server, then launched terminal and typed this:

/usr/local/mysql/bin/mysql --version which returns the version, but when I type any type of mysql command I get command not found . I've also tried sudo mysql_secure_installation , mysql -u root --password=password .

I do have web hosting with mysql etc installed, but I want to be able to get to grips with it in the command line first.

Answer 1

So there are few places where terminal looks for commands. This places are stored in your $PATH variable. Think of it as a global variable where terminal iterates over to look up for any command. This are usually binaries look how /bin folder is usually referenced.

/bin folder has lots of executable files inside it. Turns out this are command. This different folder locations are stored inside one Global variable ie $PATH separated by :

Now usually programs upon installation takes care of updating PATH & telling your terminal that hey i can be all commands inside my bin folder.

Turns out MySql doesn't do it upon install so we manually have to do it.

We do it by following command,

export PATH=$PATH:/usr/local/mysql/bin

If you break it down, export is self explanatory. Think of it as an assignment. So export a variable PATH with value old $PATH concat with new bin ie /usr/local/mysql/bin

This way after executing it all the commands inside /usr/local/mysql/bin are available to us.

There is a small catch here. Think of one terminal window as one instance of program and maybe something like $PATH is class variable ( maybe ). Note this is pure assumption. So upon close we lose the new assignment. And if we reopen terminal we won't have access to our command again because last when we exported, it was stored in primary memory which is volatile.

Now we need to have our mysql binaries exported every-time we use terminal. So we have to persist concat in our path.

You might be aware that our terminal using something called dotfiles to load configuration on terminal initialisation. I like to think of it's as sets of thing passed to constructer every-time a new instance of terminal is created ( Again an assumption but close to what it might be doing ). So yes by now you get the point what we are going todo.

.bash_profile is one of the primary known dotfile .

So in following command,

echo 'export PATH=$PATH:/usr/local/mysql/bin' >> ~/.bash_profile

What we are doing is saving result of echo ie output string to ~/.bash_profile

So now as we noted above every-time we open terminal or instance of terminal our dotfiles are loaded. So .bash_profile is loaded respectively and export that we appended above is run & thus a our global $PATH gets updated and we get all the commands inside /usr/local/mysql/bin .

Ps

if you are not running first command export directly but just running second in order to persist it? Than for current running instance of terminal you have to,

source ~/.bash_profile

This tells our terminal to reload that particular file.

Answer 2

That means /usr/local/mysql/bin/mysql is not in the PATH variable..

Either execute /usr/local/mysql/bin/mysql to get your mysql shell,

or type this in your terminal:

PATH=$PATH:/usr/local/mysql/bin

to add that to your PATH variable so you can just run mysql without specifying the path

Answer 3

for me the following commands worked:

$ brew install mysql

$ brew services start mysql

Answer 4

You can just modified the .bash_profile by adding the MySQL $PATH as the following:
export PATH=$PATH:/usr/local/mysql/bin .

I did the following:

1- Open Terminal then $ nano .bash_profile or $ vim .bash_profile

2- Add the following PATH code to the .bash_profile

# Set architecture flags
export ARCHFLAGS="-arch x86_64"
# Ensure user-installed binaries take precedence
export PATH=/usr/local/mysql/bin:$PATH
# Load .bashrc if it exists
test -f ~/.bashrc && source ~/.bashrc 

3- Save the file.

4- Refresh Terminal using $ source ~/.bash_profile

5- To verify, type in Terminal $ mysql --version

6- It should print the output something like this:

$ mysql Ver 14.14 Distrib 5.7.17, for macos10.12 (x86_64)

The Terminal is now configured to read the MySQL commands from $PATH which is placed in the .bash_profile .

Answer 5

修改你的bash配置文件如下<> $ vim~ / .bash_profile export PATH = / usr / local / mysql / bin：$ PATH一旦保存，你可以输入mysql在你的终端中输入mysql提示符。

Answer 6

You have to create a symlink to your mysql installation if it is not the most recent version of mysql.

$ brew link --force mysql@5.6

see this post by Alex Todd