Practice time View Pipeline Vim permissions

1. Displays the current time, the display format is HH:MM:SS, and is saved to the file Time.txt file.

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2. Display the 第15-18 line contents of the/etc/passwd file

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3. display files in/bin file containing uppercase letters, save to desktop 1.txt file, and count the number of display to screen

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4. Under student user Find/etc under passwd file, mask error output

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5. Under student user Find/etc under passwd file, correct output saved to/tmp/westos.out, error output saved to/tmp/westos.err

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6. Under student user Find/etc under passwd file, display command output and save output to/tmp/westos.all

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7. Processing documents in document/usr/share/mime/packages/freedesktop.org.xml requirements are as follows:

Locate the lines in this file that contain Ich, and save these lines to/root/lines

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Use VIM to replace the space in the/root/lines, but keep the contents of the file

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8. New user group, Shengchan,caiwu,jishu
New user requirements are as follows:
        * Tom is an additional user of the Shengchan group
        * Harry is an additional user of the Caiwu group
         * Leo is an additional user of the Jishu group
        * New Admin user, this user does not belong to the above mentioned three departments
The new directory requirements are as follows:
        */pub directory for common storage directory for all users can read, write, execute, but users can only delete files belonging to their own
         */SC directory for production department storage Directory can only be written to production department personnel,
           the files created by the production staff are automatically attributed to the Shengchan group
        */CW Directory for the Finance Department storage directory can only be written to the Finance department personnel,
          and financial department personnel created by the documents are automatically attributed to the Caiwu group
 

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9. Set normal user new file permission to "r--r-----"

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Settings Admin user can freely create new user via sudo

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Today's practice is here, tomorrow to continue to learn new things!

Practice time View Pipeline Vim permissions