蓝点中文_linux2.0 实验二简单shell命令

骑猪看日落 2022-03-27 10:56 130阅读 0赞

一.实验要求

1.掌握简单的shell命令:date ls cd pwd man clear cat grep call

2.中文输入法的启动与切换

3.通配符的含义与使用(\*与?)

4.重定向管道(>和<以及|)

二.实验内容:

1.登录系统:

[![image][]][image 1]

2.基本shell命名操作:

date 显示系统时间

[![image][image 2]][image_image 2]

pwd 输出当前目录名称

[![image][image 3]][image_image 3]

ls 列出当前目录下文件

[![image][image 4]][image_image 4]

cd 目录间切换

cd .. 上级目录

[![image][image 5]][image_image 5]

man ls 获取帮助信息.

[![image][image 6]][image_image 6]

cat >filename 新建文本文件

[![image][image 7]][image_image 7]

保存文本文件: crlt + d 结束文本编辑.

grep 查找文件中字符.

如 grep editing file1 作用是在file1中查找editing.

[![image][image 8]][image_image 8]

grep 查找时可以不分大小写, –y ;可以输出行号 –n ;

如 grep editing –y – n file1 作用是不分大小写来查找file1中的editing.并列出行号和不分大小写.

[![image][image 9]][image_image 9]

cal 06 2012 查看日历

[![image][image 10]][image_image 10]

3.通配符的使用

使用示例

ls c\*

[![image][image 11]][image_image 11] ?

ls c??

ls c???

[![image][image 12]][image_image 12]

显示目录中素有的首字母为c或s或h的文件和目录

ls \[c,s,h\]\*

[![image][image 13]][image_image 13]

4.重定向和管道.

在file1后面添加内容(" i love linux")

cat >>file1,输入内容,crtl+d结束输入,cat file1显示文件内容.

[![image][image 14]][image_image 14]

●将所有主机信息保存到指定目录下/home下.

方法为 df>file2

[![image][image 15]][image_image 15] ●将文件中的包含某个字母的一行作为另一个文件的内容.

示例:将file2中包含s的一行,作为fiel3的文件内容.

方法: cat file2|grep s >file3

[![image][image 16]][image_image 16] ●统计文件的行数,单词数和字符数,保存文件.

方法为:wc <file2>file4

[![image][image 17]][image_image 17]

●分页显示文件,目录信息.

目录: ls -Rl|more

[![image][image 18]][image_image 18] 文件: cat file2 |more

[![image][image 19]][image_image 19] ●空格键可以查看下一页信息.enter键可以查看下一行信息.crtl+c或者Q强制结束.

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