chmod (change permissions) in Linux CLI - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the command to give execute permission to the user on file.txt.

Linux CLI

chmod u[1] file.txt

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

A+x

B-r

C+w

D-x

Attempts:

3 left

💡 Hint

Common Mistakes

Using '-x' removes execute permission instead of adding it.

Using '+w' adds write permission, not execute.

The '+x' adds execute permission for the user (u) on the file.

2fill in blank

medium

Complete the command to remove write permission from group on script.sh.

Linux CLI

chmod g[1] script.sh

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

A+x

B-w

C+w

D-r

Attempts:

3 left

💡 Hint

Common Mistakes

Using '+w' adds write permission instead of removing it.

Using '-r' removes read permission, not write.

The '-w' removes write permission from the group (g) on the file.

3fill in blank

hard

Fix the error in the command to add read permission for others on data.csv.

Linux CLI

chmod o[1] data.csv

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

A+r

Brw

Cr+

D-r

Attempts:

3 left

💡 Hint

Common Mistakes

Writing 'r+' instead of '+r' causes syntax error.

Using '-r' removes read permission instead of adding it.

The correct syntax is '+r' to add read permission; 'r+' is invalid.

4fill in blank

hard

Fill both blanks to set read and write permissions for user and remove execute permission for group on file.txt.

Linux CLI

chmod u[1],g[2] file.txt

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

A+rw

B-x

C+x

D-rw

Attempts:

3 left

💡 Hint

Common Mistakes

Using '+x' instead of '-x' removes execute permission incorrectly.

Using '-rw' for user removes permissions instead of adding.

Adding '+rw' to user gives read and write permissions; removing '-x' from group removes execute permission.

5fill in blank

hard

Fill all three blanks to add execute permission for user, remove write permission for group, and add read permission for others on app.sh.

Linux CLI

chmod u[1],g[2],o[3] app.sh

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

A+x

B-w

C+r

D-x

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing '+' and '-' signs incorrectly.

Using '-x' instead of '+x' for user permission.

The command adds execute permission for user (+x), removes write permission for group (-w), and adds read permission for others (+r).