The third part of the "Linux Discovery Journey" Quiz

Source: Internet
Author: User


Content Introduction

1 Part three test questions

2, The fourth part of the first lesson: Compressed files, decompression without pressure


Part Three quiz questions


  1. Which of the following does the WC command not do?

    A. Count the number of words

    B. Number of rows of statistics

    C. Sorting the contents of a file


  2. When searching for text with the grep command, when do I need to wrap the search keyword in double quotes?

    A. keyword more than 10 characters

    B. keyword is regular expression

    C. Keywords contain spaces


  3. redirect Symbol >> Do you create a file when the file does not exist?

    A. Will

    B. Will not


  4. What does 2>&1 mean?

    A. Redirecting the standard error output to the same place as the standard output

    B. Redirecting a standard error output to a file

    C. Ignore standard error output


  5. When command >/dev/null commands are executed, where are the command outputs redirected?

    A. In a null file in the/dev directory

    B. In the Trash bin

    C. "Black hole", discarded, will not be retained


  6. What does the following three load values mean? 0.07, 0.14, 0.12

    A. Average load over time periods of different lengths

    B. Maximum, minimum, and average load

    C. The load per processor core


  7. How do I list the processes that contain gnome in the name run by all root users?

    A. Ps-ef

    B. Ps-u Root

    C. Ps-u Root | grep Gnome

    D. Ps-u Root-p Gnome


  8. How can I pause a process?

    A. Ctrl + Z

    B. Ctrl + C

    C. Halt

    D. Nohup


  9. How do I go to the foreground to run a process?

    A. FG

    B. BG

    C. BC

    D. Top


  10. I want to execute a program five minutes per integer per weekend, what should I write?

    A./5 * * * 0-1 command

    B. */5 * * * 0,6 command

    C. */5 * * * 5-6 command


Answer


  1. C

  2. C

  3. A

  4. A

  5. C

  6. A

  7. C

  8. A

  9. A

  10. B

?

The fourth part of the first lesson notice


Today's class will come here, together refueling it!

Next lesson we learn: compress files, decompress without pressure

Copyright NOTICE: This article for Bo Master original article, reproduced please be sure to indicate the source, otherwise investigate legal responsibility.

The third part of the "Linux Discovery Journey" Quiz

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