Shulou(Shulou.com)06/02 Report--

Assessment content

Test []

Echo-e

For cycle

Train of thought

The create command cannot be executed when the user is not root

Prompt when the input is blank

Prompt if input does not exist

Delete users created when they are established

User exists when it is not established

Edit a file

Echo-e font color setting, you can query font color table

When ordinary users

When the file is empty

When the file does not exist

Create users user1 and user2,user3 in batches upon establishment

When it is not established

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