[[emailprotected]~]#bc
按Q键退出
Hello, we are XX tourism company, we have you and your 2 children 4 to set up tourist routes for you to choose.
From Beijing to Shanghai's tourist routes, you can go play in Shanghai Zoo, which has its own characteristics is a large-scale integrated Zoo. Then you can also go to Shanghai, Nanjing Pedestrian Street shopping, it is a shopper's paradise.
From Beijing to Changsha tourist routes, you can go play Changsha Window of the World, which is a new development in an amusement park. Then you can go take a look at Pinghu Tang and Wangfujing, one of the very many. Yuelu Mountain is you have to go to a place, from the top you can see the whole Changsha.
From Beijing to Guangzhou's tourist routes, you can go a long long amusement park to play, and that there are many excellent recreational facilities, so that you will not regret it. You can also go to Hong Kong the world's wildlife, which is currently China's largest imitation of the Wild Animal Park. Guangzhou's food is delicious, you will like.
From Beijing to Guilin tourism line, you can go to the famous Lijiang River, sitting on the boat to enjoy the beautiful scenery, and then can go to Yinzi Yan, it was China's first large cavern 4. Guilin Yang Shuo in the line of Yang Renjie shopping and you will be a good place to eat. That you will not feel the same with Chinese characteristics.
I hope you are happy to play China
Yours
XXX
Dear teacher,
We'll have a class meeting this afternoon. All of us students hope that you can attend it. Please accept our sincere invitation.
In the class meeting, we will make some plans about all the subjects, including English. We do have some puzzles and we need your help. So we hope you can set some time aside to be with us in the class meeting. We will feel honored if you can come to attend our class meeting.
Looking forward to your coming.
Yours
XXX
1.-rwxrwxrwx代表什么意思?
代表文件所属用户及所属组及其它用户均有可读可写可执行功能
其中
r:可读其值为4
w:可写其值为2
x:可执行其值为1
2.要将一个文件的属性改为-rwxr-xr--,采用什么命令
Chmod 754 文件名或chmod u=rwx,g=rx,o=r 文件名
3.若需要更改一个文件的拥有者与用户组,该用什么命令
Chown [-r] 账号名称:文件或目录
Chown [-r] 账号名称:用户组名称、文件或目录
例如:chown bin install.log
chown root:root install.log
4.显示隐藏文件
Ls –a –l
© 2022 zuowencangku.com,All Rights Reserved.