#mysql:command not found

一、问题描述

　　1、在linux中已经安装好mysql，通过#ps -ef |ｇrep mysql 能显示mysql已经启动，但去进入mysql命令页面出现如下问题：

1 　　[root@root ~]# mysql u -p
2 -bash: mysql: command not found

　　查找mysql是否已经启动

1 [root@root ~]# ps -ef  | grep mysql
2 root      1172     1  0 18:28 ?        00:00:00 /bin/sh /usr/local/mysql/bin/mysqld_safe --datadir=/service/mysql --pid-file=/service/mysql/root.pid
3 mysql     1285  1172  9 18:28 ?        00:00:01 /usr/local/mysql/bin/mysqld --basedir=/usr/local/mysql --datadir=/service/mysql --plugin-dir=/usr/local/mysql/lib/plugin --user=mysql --log-error=/service/mysql/root.err --pid-file=/service/mysql/root.pid
4 root      1440  1288  0 18:28 pts/1    00:00:00 grep mysql

　　2、查找问题产生原因：

　　原因:这是由于系统默认会查找/usr/bin下的命令，如果这个命令不在这个目录下，当然会找不到命令，我们需要做的就是映射一个链接到/usr/bin目录下，相当于建立一个链接文件。
首先得知道mysql命令或mysqladmin命令的完整路径，比如mysql的路径是：/usr/local/mysql/bin/mysql，【此路经是mysql实际安装路径】我们则可以这样执行命令　　

1 [root@root bin]# ln -fs /usr/local/mysql/bin/mysql /usr/bin/

　　3、连接mysql　　

 1 [root@root bin]# mysql -u -p
 2 Welcome to the MySQL monitor.  Commands end with ; or g.
 3 Your MySQL connection id is 1
 4 Server version: 5.6.20 Source distribution
 5 
 6 Copyright (c) 2000, 2014, Oracle and/or its affiliates. All rights reserved.
 7 
 8 Oracle is a registered trademark of Oracle Corporation and/or its
 9 affiliates. Other names may be trademarks of their respective
10 owners.
11 
12 Type 'help;' or 'h' for help. Type 'c' to clear the current input statement.
13 
14 mysql> Ctrl-C -- exit!
15 Aborted