Permission types (read, write, execute) in Linux CLI - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to check if a file is readable by the user.

Linux CLI

if [ -[1] file.txt ]; then echo "Readable"; fi

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

Af

Br

Cx

Dw

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'w' or 'x' instead of 'r' for read check.

The -r flag checks if the file is readable.

2fill in blank

medium

Complete the command to add write permission for the user on a file.

Linux CLI

chmod u[1] file.txt

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

A+w

B-r

C+x

D-w

Attempts:

3 left

💡 Hint

Common Mistakes

Using '-w' which removes write permission.

The +w adds write permission for the user.

3fill in blank

hard

Fix the error in the command to execute a script named 'run.sh'.

Linux CLI

./[1]

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

Arun

Brunsh

Crun.sh

Drun.sh.txt

Attempts:

3 left

💡 Hint

Common Mistakes

Omitting the '.sh' extension.

The script file must be named exactly with its extension to execute it.

4fill in blank

hard

Fill both blanks to create a command that removes execute permission for group and others.

Linux CLI

chmod [1][2] file.txt

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

Ago-

Bu-

Cx

Dw

Attempts:

3 left

💡 Hint

Common Mistakes

Removing write permission instead of execute.

go- targets group and others, x is execute permission to remove.

5fill in blank

hard

Fill all three blanks to create a command that adds read and write permissions for user and execute for others.

Linux CLI

chmod u[1],o[2] file.txt # Add [3] permission for others

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

A+rw

B+x

Cexecute

D-x

Attempts:

3 left

💡 Hint

Common Mistakes

Removing execute permission instead of adding.

u+rw adds read and write for user, o+x adds execute for others, which is the execute permission.