结构如下

ravas@ravas-desk-lmde /var/lib $pwd
/var/lib
ravas@ravas-desk-lmde /var/lib $ls -l | grep mysql
drwx------ 13 mysql   mysql   4096 Feb 10 22:32 mysql

当我尝试进入/ var / lib / mysql时,我没有权限

ravas@ravas-desk-lmde /var/lib $cd mysql/
bash: cd: mysql/: Permission denied

虽然我属于mysql组

ravas@ravas-desk-lmde /var/lib $groups ravas 
ravas : ravas adm dialout cdrom floppy sudo audio dip video plugdev lpadmin sambashare mysql

这里有什么问题？

解决方法

sudo -i

然后

cd /var/lib/mysql/