Why debugging saves hours in Bash Scripting - Test Your Understanding

Practice - 5 Tasks

1fill in blank

easy

Complete the code to print a message showing the script started.

Bash Scripting

echo [1]

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

A"Script started"

BScript started

C'Script started'

DScript_started

Attempts:

3 left

💡 Hint

Common Mistakes

Forgetting quotes causes multiple words to be treated as commands.

Using single quotes is okay but double quotes are preferred here.

Use quotes to print the exact message with spaces.

2fill in blank

medium

Complete the code to check if a file named 'data.txt' exists.

Bash Scripting

if [[ -[1] data.txt ]]; then
  echo "File exists"
fi

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

Af

Be

Cd

Ds

Attempts:

3 left

💡 Hint

Common Mistakes

Using '-f' checks only for regular files, not directories.

Using '-d' checks only for directories.

The '-e' flag checks if the file exists regardless of type.

3fill in blank

hard

Fix the error in the script to assign the output of 'date' command to a variable.

Bash Scripting

current_date=[1]

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

A`date`

B"date"

C$(date)

Ddate

Attempts:

3 left

💡 Hint

Common Mistakes

Assigning the command name as a string instead of its output.

Using quotes around the command name instead of substitution.

Use $(command) to capture command output into a variable.

4fill in blank

hard

Fill both blanks to loop over files and print their names if they are regular files.

Bash Scripting

for file in [1]; do
  if [[ -[2] $file ]]; then
    echo "$file"
  fi
done

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

A"*"

Bf

Ce

D"?"

Attempts:

3 left

💡 Hint

Common Mistakes

Using '-e' instead of '-f' includes directories.

Using '?' matches only single character filenames.

Use "*" to match all files and '-f' to check for regular files.

5fill in blank

hard

Fill all three blanks to create a function that prints 'Debugging saves hours' and call it.

Bash Scripting

function [1]() {
  echo [2]
}

[3]

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

Adebug_message

B"Debugging saves hours"

Dprint_debug

Attempts:

3 left

💡 Hint

Common Mistakes

Calling a different function name than defined.

Not quoting the message string.

Define function 'debug_message', echo the message in quotes, then call 'debug_message'.