笔记

more ec_unitouch.log |grep Thread-4 筛选日志

    打开命令行终端 ctrl + alt + t

     查看版本号 : sudo lsb_release -a

  tar -zxvf xx.tar.gz

删除 rm -rf name   新建文件夹 mkdir name  移动 mv /home/siang/aa /home/usr/local

gedit /etc/profile  设置liunx环境变量

切换到root用户 su root

更改文件拥有者, chown
那么,如何改变一个文件的拥有者呢?很简单。既然改变用户组是change group,那么改变拥有者就是change owner(改变拥有者)。这就是chown这个命令的用途,要注意的是,用户必须是已经存在系统中的,也就是在 /etc/passwd这个文件中有记录的用户名称才可改变。
chown的用途很多,还可以顺便直接修改用户组的名称。此外,如果要连目录下的所有子目录或文件同时更改文件拥有者的话,直接加上 -R的参数即可。我们来看看语法与范例:
[root@linux ~]# chown [-R] 账号名称 文件或目录
[root@linux ~]# chown [-R] 账号名称:用户组名称 文件或目录
sudo chown siang:siang aa.xml

2 更新软件源

  备份sources.list文件:  cp /etc/apt/sources.list etc-backup/etc-apt-source.list

  

打开sources.list:

sudo gedit /etc/apt/sources.list

改sources.list,将sources.list内容全部替换为以下内容:

deb http://mirrors.163.com/ubuntu/ precise main restricted

deb-src http://mirrors.163.com/ubuntu/ precise main restricted

deb http://mirrors.163.com/ubuntu/ precise-updates main restricted

deb-src http://mirrors.163.com/ubuntu/ precise-updates main restricted

deb http://mirrors.163.com/ubuntu/ precise universe

deb-src http://mirrors.163.com/ubuntu/ precise universe

deb http://mirrors.163.com/ubuntu/ precise-updates universe

deb-src http://mirrors.163.com/ubuntu/ precise-updates universe

deb http://mirrors.163.com/ubuntu/ precise multiverse

deb-src http://mirrors.163.com/ubuntu/ precise multiverse

deb http://mirrors.163.com/ubuntu/ precise-updates multiverse

deb-src http://mirrors.163.com/ubuntu/ precise-updates multiverse

deb http://mirrors.163.com/ubuntu/ precise-backports main restricted universe multiverse

deb-src http://mirrors.163.com/ubuntu/ precise-backports main restricted universe multiverse

deb http://mirrors.163.com/ubuntu/ precise-security main restricted

deb-src http://mirrors.163.com/ubuntu/ precise-security main restricted

deb http://mirrors.163.com/ubuntu/ precise-security universe

deb-src http://mirrors.163.com/ubuntu/ precise-security universe

deb http://mirrors.163.com/ubuntu/ precise-security multiverse

deb-src http://mirrors.163.com/ubuntu/ precise-security multiverse

deb http://extras.ubuntu.com/ubuntu precise main

deb-src http://extras.ubuntu.com/ubuntu precise main

保存对source.list的修改。

sudo apt-get update

  

05-13 01:13