Moving and decompressing the MySQL tar package and creating a mysql user

Move and decompress the MySQL tar package under LINUX and create a mysql user

1. Move the MySQL tar package to the upper-level directory of /usr/local/src , and decompress

# tar -zxvf msyql-5.5.38-linux2.6-i686.tar.gz

2. After decompressing

## 3. Create a soft link for this decompressed directory (shortcut: mainly for convenience)

#ln -sv mysql-5.5.38-linux2.6-i686 mysql

4. Enter the mysql directory

Create a mysql user

1. Create A mysql user to run the MySQL software (any software under Linux requires a user identity)

# useradd mysql

2. Change the owner and group of the mysql directory and its subdirectories and files to mysql and mysql group

# chown  -R  mysql.mysql  . (-R 递归操作)

3. Change back

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