Backup strategies in Linux CLI - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to create a compressed backup of the /home directory using tar.

Linux CLI

tar [1] -czf backup.tar.gz /home

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

A-c

B-x

C-v

D-r

Attempts:

3 left

💡 Hint

Common Mistakes

Using -x instead of -c will try to extract files instead of creating an archive.

Using -r appends files to an existing archive, not creating a new one.

The -c option tells tar to create a new archive.

2fill in blank

medium

Complete the command to synchronize the /data directory to /backup using rsync.

Linux CLI

rsync -a [1] /backup

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

A/backup

B/backup/

C/data

D/data/

Attempts:

3 left

💡 Hint

Common Mistakes

Using /data without trailing slash copies the directory itself inside /backup.

Confusing source and destination paths.

The source directory should be specified with a trailing slash to copy contents inside /data/.

3fill in blank

hard

Fix the error in the command to create an incremental backup with tar using the snapshot file.

Linux CLI

tar -czf backup.tar.gz --listed-incremental=[1] /var/log

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

Asnapshot-file

Bsnapshotfile

Csnapshot.file

Dsnapshot/file

Attempts:

3 left

💡 Hint

Common Mistakes

Using slashes in the snapshot file name causes path errors.

Using names without dots may be confusing but not wrong; however, the standard is to use a dot.

The snapshot file name should be a valid filename without special characters or slashes.

4fill in blank

hard

Fill both blanks to create a backup script that archives /etc and excludes *.tmp files.

Linux CLI

tar [1] -czf etc_backup.tar.gz /etc --exclude=[2]

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

A-c

B-x

C*.tmp

D*.log

Attempts:

3 left

💡 Hint

Common Mistakes

Using -x extracts files instead of creating an archive.

Excluding the wrong file pattern like *.log.

-c creates the archive, and --exclude=*.tmp skips temporary files.

5fill in blank

hard

Fill all three blanks to create a dictionary comprehension that maps filenames to their sizes for files larger than 1MB.

Linux CLI

sizes = [1]: os.path.getsize([2]) for [3] in files if os.path.getsize([3]) > 1048576

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

Afilename

Bfile

Attempts:

3 left

💡 Hint

Common Mistakes

Using inconsistent variable names for keys and iteration.

Not filtering files by size correctly.

This comprehension creates a dictionary with filenames as keys and their sizes as values, filtering files larger than 1MB.