File descriptors and redirection in Bash Scripting - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to redirect standard output to a file named output.txt.

Bash Scripting

echo "Hello World" [1] output.txt

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

A>>

B2>

C>

D<

Attempts:

3 left

💡 Hint

Common Mistakes

Using >> appends instead of overwriting.

Using < redirects input, not output.

The > operator redirects standard output to a file, overwriting it.

2fill in blank

medium

Complete the code to append standard output to a file named log.txt.

Bash Scripting

ls -l [1] log.txt

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

A>

B>>

C2>

D<

Attempts:

3 left

💡 Hint

Common Mistakes

Using > overwrites the file instead of appending.

Using 2> redirects standard error, not standard output.

The >> operator appends output to the file without overwriting.

3fill in blank

hard

Fix the error in the code to redirect standard error to errors.log.

Bash Scripting

grep 'pattern' file.txt [1] errors.log

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

A2>

B>

C>>

D<

Attempts:

3 left

💡 Hint

Common Mistakes

Using > redirects standard output, not error.

Using < redirects input, not error output.

The 2> operator redirects standard error (file descriptor 2) to a file.

4fill in blank

hard

Fill both blanks to redirect standard output to out.txt and standard error to err.txt.

Bash Scripting

command [1] out.txt [2] err.txt

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

A>

B2>

C>>

D2>>

Attempts:

3 left

💡 Hint

Common Mistakes

Using append operators >> or 2>> when overwriting is needed.

Mixing up standard output and error redirection operators.

> redirects standard output, and 2> redirects standard error.

5fill in blank

hard

Fill all three blanks to redirect standard output to output.log, standard error to error.log, and append standard output to combined.log.

Bash Scripting

my_script.sh [1] output.log [2] error.log [3] combined.log

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

A>

B2>

C>>

D2>>

Attempts:

3 left

💡 Hint

Common Mistakes

Using 2>> for standard error when overwriting is needed.

Confusing append and overwrite operators.

> overwrites standard output, 2> overwrites standard error, and >> appends standard output.