Linux Exercises and Answers

<<< First unit exercises >>>

1. User Login System graphical interface with student

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Open the virtual machine client side

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Graphical Client Side

2. Open a bash

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3. Modify The student password to update the password to "T3st1ngtlme" ( host letters and Numbers )

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4. display the current system time

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5. display the current system time, the display format is:" hours : minutes : seconds am/pm"(am/pm for the last afternoon logo)

Dat +%r

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6. DisplayThefile type of "/usr/bin/clean-binary-files"

File/usr/bin/clean-binary-files

7. statistics for "/usr/bin/clean-binary-files" File size

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8. use a shortcut to invoke the executed 4 command in the shell

! 4

9. use a shortcut to execute the most recent command with the "date" keyword

Ctl+r +date

<<< Second unit exercise >>>

1. create a file with commands and regular expressions as required

*) Use one command to create a westos_classx_linuxy ( the value range of X is 1-2andY is a range of 1-6)

*) These files are included in the study directory of the root user's desktop

*) Create 8 files with one command Redhat_versionx( The range of x is 1-8)

*) Redhat_virsionx These files are included in VERSION in the/mnt directory

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2. management of the documents just established by the letter is as follows

*) Copy the odd files in the Redhat_versionx to the single in the desktop with one command

*) copy files with even numbers in Redhat_versionx to /double with a single command

*) use a command to move the Class1 file in Westos_classx_linuxy to the CLASS1 of the current user's desktop

*) use a command to move the Class2 file in Westos_classx_linuxy to the CLASS2 of the current user's desktop

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3. back up all the files in the/etc directory with the names with numbers and end with. conf to the Confdir on the desktop

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5. Delete all files you have just created or backed up

RM-RF *

<<< Fourth Unit exercise >>>

1. Execute the find/etc-name passwd command under the student user and manage its output requirements as follows:

* Show all correct output, mask error output

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* save correct number out to /mnt/find.out, error number out to /mnt/find.err

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* Create /mnt/find.all file, and save all output to this file

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* Save all output to /mnt/find.all again , and keep the contents of the source file

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* block all output from this command

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* Show all output of this command and save output to any file on the desktop

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* save correct output to /mnt/find.out.1 , mask error Output

Find/etc–name passwd >/mnt/file.out.1 2>/dev/null

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

* Locate the line containing ICH in this file and save these lines to /root/lines

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* Replace the space in/root/lines with vim , but keep the contents of the file

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%s//vim/g/

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Linux Exercises and Answers