Why compression saves storage and bandwidth in Linux CLI - Test Your Understanding

Practice - 5 Tasks

1fill in blank

easy

Complete the code to compress a file using gzip.

Linux CLI

gzip [1]

Drag options to blanks, or click blank then click option'

Afile.txt

B-d

C-k

D-v

Attempts:

3 left

💡 Hint

Common Mistakes

Using '-d' which decompresses instead of compressing.

Forgetting to specify the file name.

The command 'gzip file.txt' compresses the file named file.txt, saving storage space.

2fill in blank

medium

Complete the command to decompress a gzip file.

Linux CLI

gzip [1] file.txt.gz

Drag options to blanks, or click blank then click option'

A-d

B-k

C-c

D-v

Attempts:

3 left

💡 Hint

Common Mistakes

Using '-k' which keeps the original file but does not decompress.

Using '-c' which outputs to stdout instead of decompressing the file.

The '-d' option tells gzip to decompress the file.

3fill in blank

hard

Fix the error in the command to show compression ratio of a gzip file.

Linux CLI

gzip -l [1]

Drag options to blanks, or click blank then click option'

Afile.txt

Bfile.gz.txt

Cfile

Dfile.txt.gz

Attempts:

3 left

💡 Hint

Common Mistakes

Using the uncompressed file name instead of the compressed one.

Mixing up file extensions.

The '-l' option lists info about a gzip file, so the input must be the compressed file 'file.txt.gz'.

4fill in blank

hard

Fill in the blank to create a compressed archive and then check its size.

Linux CLI

tar [1] archive.tar.gz folder/ && ls -lh archive.tar.gz

Drag options to blanks, or click blank then click option'

A-xvf

B-czf

C-cf

D-tvf

Attempts:

3 left

💡 Hint

Common Mistakes

Using '-xvf' which extracts files instead of creating.

Using '-tvf' which lists archive contents.

Using '-cf' which creates an uncompressed archive.

The '-czf' option creates a compressed tar archive (resulting in archive.tar.gz), and 'ls -lh archive.tar.gz' checks its size.

5fill in blank

hard

Fill all three blanks to compress a file, check its size, and then decompress it.

Linux CLI

gzip [1] && ls -lh [2] && gzip [3] [2]

Drag options to blanks, or click blank then click option'

Afile.txt

Bfile.txt.gz

C-d

D-k

Attempts:

3 left

💡 Hint

Common Mistakes

Trying to decompress before compressing.

Listing the wrong file name.

First compress 'file.txt', then list the compressed file size, then decompress using '-d'.