cat (display file contents) in Linux CLI - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the command to display the contents of a file named notes.txt.

Linux CLI

cat [1]

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

A-l

Becho

Cls

Dnotes.txt

Attempts:

3 left

💡 Hint

Common Mistakes

Using ls instead of the file name after cat.

Adding options like -l which cat does not use.

The cat command followed by the filename notes.txt displays the file's contents.

2fill in blank

medium

Complete the command to display the contents of two files, file1.txt and file2.txt, one after the other.

Linux CLI

cat [1]

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

A-a file1.txt file2.txt

Bfile1.txt file2.txt

Cfile1.txt,file2.txt

D-l file1.txt file2.txt

Attempts:

3 left

💡 Hint

Common Mistakes

Using commas between file names instead of spaces.

Adding unsupported options like -a or -l.

Listing the two filenames separated by a space after cat displays their contents in order.

3fill in blank

hard

Fix the error in the command to display the contents of report.txt.

Linux CLI

cat [1]

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

Areport.txt

B-r report.txt

Creport.txt -r

Dreporttxt

Attempts:

3 left

💡 Hint

Common Mistakes

Adding unsupported options like -r.

Misspelling the filename.

The correct command is cat report.txt. Options like -r are invalid for cat, and misspelled filenames cause errors.

4fill in blank

hard

Fill both blanks to create a command that shows the contents of log1.txt in reverse order using tac.

Linux CLI

[1] [2]

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

Atac

Bcat

Clog2.txt

Dlog1.txt

Attempts:

3 left

💡 Hint

Common Mistakes

Using cat instead of tac for reverse display.

Swapping the filenames or commands.

The command tac log1.txt displays the contents of log1.txt in reverse order. Here, tac is the reverse of cat.

5fill in blank

hard

Fill all four blanks to create a command that concatenates part1.txt and part2.txt and saves the result to full.txt.

Linux CLI

[1] [2] [3] > [4]

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

Acat

Bpart1.txt

Cfull.txt

Dpart2.txt

Attempts:

3 left

💡 Hint

Common Mistakes

Using only one input file.

Redirecting output to an input file.

Swapping input and output files.

The command cat part1.txt part2.txt > full.txt joins the two files and writes the output to full.txt.