Wei Dongshan embedded first phase of the study notes DAY_1--3_3_linux command prompt and linux command format

Author: GWD Time: 2019.7.2

First, the course content
1, the command prompt
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command prompt, shows
1), the user name currently logged
2) path, the user is currently located
Format 2, linux command: command [options] [parameters]
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For example:
LS
LS - L
LS -l / Home

1), command this part is certainly there;
2), options and parameters need not be present, dispensable, options and parameters depend on the specific purpose you use this command implementation;
3), the option is "-" to indicate ; and
4), between commands, options, parameters are separated by a space, one or more spaces are treated as a space. Such as: ls -l / home and ls -l / home same purpose;
5), after the completion of linux command input, the enter key is pressed, to execute the command.

Second, the learning points (no)
three codes (no)

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Origin blog.csdn.net/gongweidi/article/details/94466051