D). Copy all files in the directory d1 to the directory d2 using a single command line. $ cp f* . txt . ./d2 E). Under the directory d2 rename filel. txt as f1 . txt and file2 . txt as f2 . txt. F). Under the directory d2 move f1 . txt and f2 . txt to the directory d1 using a single command line. G). Remove the directory d2. H). Copy everything (files, directories) under the directory testdirl to the directory testdir2 using a single command line. I). Remove the directory testdirl. J) Run the following command and ensure that you understand the output: $ du - a testdir2
Question
D). Copy all files in the directory d1 to the directory d2 using a single command line. du - a testdir2
Solution
Here are the commands you need to execute for each step:
D) To copy all files from directory d1 to directory d2, you can use the cp command. If you're currently in directory d1, you can use:
cp * ../d2/
E) To rename files in directory d2, you can use the mv command:
mv file1.txt f1.txt
mv file2.txt f2.txt
F) To move files f1.txt and f2.txt from directory d2 to directory d1, you can use the mv command:
mv f1.txt f2.txt ../d1/
G) To remove directory d2, you can use the rmdir command:
rmdir ../d2
H) To copy everything from directory testdir1 to directory testdir2, you can use the cp command with the -R option, which stands for recursive:
cp -R testdir1/* testdir2/
I) To remove directory testdir1, you can use the rm command with the -r option, which stands for recursive:
rm -r testdir1
J) The du command is used to estimate file and directory space usage. The -a option stands for 'all', and it includes both files and directories in the output. So, du -a testdir2 will display the disk usage of all files and directories under testdir2:
du -a testdir2
Please replace the directory names with your actual directory paths if they are not in the same directory where you are running these commands.
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