Schedule tasks on Linux using crontab 3
2010-02-26 15:15
260 查看
ubuntu mysql安装和用户登录安装MySQL要安装 MySQL,可以在终端提示符后运行下列命令:sudo apt-get install mysql-server mysql-client #中途会让你输入一次root用户密码sudo apt-get install php5-mysql #安装php5-mysql 是将php和mysql连接起来一旦安装完成,MySQL 服务器应该自动启动。 www.2cto.com sudo start mysql #手动的话这样启动sudo stop mysql #手动停止当你修改了配置文件後,你需要重启 mysqld 才能使这些修改生效。要想检查 mysqld 进程是否已经开启,可以使用下面的命令:pgrep mysqld如果进程开启,这个命令将会返回该进程的 id。ps -A|grep mysql如果存在mysqld,mysqld_safe等进程的话,则会显示出来,如: 4460 pts/0 00:00:00 mysqld_safe 4583 pts/0 00:00:01 mysqld www.2cto.com 登录MYSQL问题:(1)mysql -u root -p 输入密码之后,错误提示如下:ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES),意思是root的密码不正确。解决办法如下:a.sudo mysqld_safe --user=root --skip-grant-tables --skip-networking &输入命令之后,提示信息如下:[1] 5166root@jungsagacity:/home/jung# 120521 18:46:32 mysqld_safe Logging to syslog.120521 18:46:32 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql如果提示信息为:[2] 4928root@jungsagacity:/home/jung# 120521 18:44:40 mysqld_safe Logging to syslog.120521 18:44:40 mysqld_safe A mysqld process already exists表示mysqld_safe进程存在,可以通过ps -A|grep mysql 查看mysqld_safe进程IDkill -9 -xxxx 终结ID为xxxx的进程下面继续输入命令:mysql -u root mysql 表示以root用户登录到mysql数据库当中select * from user; 可以看到登记的用户名和密码等详细信息。此时会看到root 对应的密码是 123456. www.2cto.com 实际上我们输入mysql -u root -p enter password: 123456ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)重新修改root密码:update user set password=PASSWORD('123456') where user='root' and host='localhost';flush privileges; 这一句话必须的输入,否则推出mysql客户端之后,依然登录不了。(2)新建用户无法登录以root用户身份登录到数据库mysql之后之后,可以新建一个本地的用户jun,推出客户端之后,以jun进行登录,出现错误信息ERROR 1045 (28000): Access denied for user 'wujun'@'localhost' (using password: YES)出现这个错误主要有以下亮点错误:a.新建用户的时候,密码以字符串'xxxxxx'的形式输入,而不是以PASSWORD('xxxxxx')形式输入 www.2cto.com 正确的语句:mysql> insert into user(host,user,password) values('local',jun,PASSWORD('xxxxxx'));mysql> flush privileges;b.正确的输入插入语句之后,没有输入mysql> flush privileges;
相关文章推荐
- Schedule tasks on Linux using crontab
- Schedule tasks on Linux using crontab
- Schedule tasks on Linux using crontab 2
- Schedule Tasks on Linux Using Crontab
- crontab - auto execute schedule on unix/linux
- Using the Oracle ASM Cluster File System (Oracle ACFS) on Linux,Part Two
- How to run a Java Program as a daemon (service) on Linux (openSUSE) using a shell script
- Oracle Database 11g Release 2 RAC On Oracle Linux 5.8 Using VirtualBox
- How to Monitor and Log Network Traffic on Linux Using vnStat
- How To Monitor Remote Windows Machine Using Nagios on Linux
- Using The Imaging Source Video Devices on Linux
- How To Download a RPM Package Using yum Command Without Installing On Linux
- install linux on the window by using VMware
- How To: set udev rule for setting the disk permission on ASM disks when using multipath on Linux 6.x
- Oracle Database 11g Release 2 RAC On Linux Using VMware Server 2
- Issue 71 - pymssql - Undefined symbols on Mac, CentOS, Redhat with pre-compiled build - A fast MS SQL Server client library for Python directly using C API instead of ODBC. It is Python DB-API 2.0 compliant. Works on Linux, *BSD, Solaris, Mac OS X and Win
- How do I add more disk space to a virtual guest using LVM on Red Hat Enterprise Linux?
- Installing and using Net-SNMP On Linux
- HowTo Compile a 32-bit Application Using gcc On the 64-bit Linux Version
- Oracle Database 11g Release 2 RAC On Linux Using VMware Server 2