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Task 3 Solution

  1. Create a new directory named project_files in your home directory:

    mkdir ~/project_files

  2. Inside project_files, create three directories: reports, logs, and data:

    mkdir ~/project_files/reports ~/project_files/logs ~/project_files/data

  3. Navigate to the reports directory and create two files: report1.md and report2.md:

    touch ~/project_files/reports/report1.md ~/project_files/reports/report2.md

  4. Navigate to the logs directory and create four files: system.log, error.log, file1.pdf, and file2.pdf:

    touch ~/project_files/logs/system.log ~/project_files/logs/error.log ~/project_files/logs/file1.pdf ~/project_files/logs/file2.pdf

  5. In the data directory, create a text file named data.csv and another named info.txt:

    touch ~/project_files/data/data.csv ~/project_files/data/info.txt

  6. Use the nano text editor to add some random content to report1.md, system.log, and data.csv:

    nano ~/project_files/reports/report1.md
nano ~/project_files/logs/system.log
nano ~/project_files/data/data.csv

  7. Archive all files in the logs directory into a tar archive named logs_backup.tar:

    tar -cvf ~/project_files/logs_backup.tar ~/project_files/logs/file1.pdf ~/project_files/logs/file2.pdf ~/project_files/logs/system.log  ~/project_files/logs/error.log

    OR

    cd ~/project_files/logs/
tar -cvf logs_backup.tar *

  8. Move logs_backup.tar to the project_files directory:

    mv ~/project_files/logs/logs_backup.tar ~/project_files/

  9. Extract the logs_backup.tar archive back into the logs directory:

    tar -xf ~/project_files/logs_backup.tar -C ~/project_files/logs

  10. Find and list all files with the .md extension starting from the home directory (~) using the find command:

    find ~ -name "*.md"

  11. Search for all files ending with .log in the project_files directory

    find ~/project_files -name "*.log"

  12. Search for all files named file1.pdf in the project_files directory.

    find ~/project_files -name "file1.pdf"

  13. Search for all files with the .pdf extension in the project_files directory, ignoring case.

    find ~/project_files -iname "*.pdf"

  14. Search for all regular files (not directories) in the logs directory.

    find ~/project_files/logs -type f

  15. Create a symbolic link for data.csv named link_data.csv in the project_files directory:

    ln -s ~/project_files/data/data.csv ~/project_files/link_data.csv

  16. Modify link_data.csv and verify if the changes are reflected in data.csv:

    nano ~/project_files/link_data.csv

cat ~/project_files/data/data.csv

  17. Delete the symbolic link link_data.csv:

    rm ~/project_files/link_data.csv

  18. Create a file named summary.txt in the project_files directory and redirect the output of echo "Summary Start" to it:

    echo "Summary Start" > ~/project_files/summary.txt

  19. Append the current date and time to summary.txt:

    date >> ~/project_files/summary.txt

  20. Use a pipeline to count the number of lines in summary.txt and display it, appending the result to summary.txt with the tee command:

    wc -l ~/project_files/summary.txt | tee -a ~/project_files/summary.txt

  21. Count the number of words in report1.md and display it:

    wc -w ~/project_files/reports/report1.md

  22. Count the number of characters in system.log and append the result to summary.txt:

    wc -c ~/project_files/logs/system.log >> ~/project_files/summary.txt

  23. Count the total number of files and directories in project_files and append the result to summary.txt:

    find ~/project_files | wc -l >> ~/project_files/summary.txt

  24. Display the contents of summary.txt:

    cat ~/project_files/summary.txt