Bash Scripting Arena

Print 'Hello World' to the screen

Fundamentals

Print 'Hello World' with multiple spaces

Fundamentals

Write a comment saying 'This is my script'

Fundamentals

Make myscript.sh executable

Fundamentals

Execute myscript.sh in current directory

Fundamentals

Exit the script with success status

Fundamentals

Print '$HOME' literally without expansion

Fundamentals

Print 'Line1' then newline then 'Line2'

Fundamentals

Read user input into variable 'name'

Fundamentals

Prompt 'Enter name: ' and read into 'name'

Fundamentals

Read password silently into 'pass'

Fundamentals

Print 'Score: 100' using printf

Fundamentals

Break a long echo into two lines

Fundamentals

Run myscript.sh in debug mode

Fundamentals

Create variable 'name' with value 'John'

Variables

Print the value of variable 'name'

Variables

Print 'Hello John!' using name variable

Variables

Print the first argument passed to script

Variables

Print how many arguments were passed

Variables

Print all arguments passed to the script

Variables

Print the script's own name

Variables

Print the exit status of the last command

Variables

Print the script's process ID

Variables

Make 'PI' a constant with value 3.14

Variables

Delete the variable 'temp'

Variables

Export 'PATH' with new directory added

Variables

Print 'name' or 'Guest' if unset

Variables

Print the length of variable 'name'

Variables

Create array 'fruits' with apple banana orange

Variables

Calculate 5 + 3

Arithmetic

Calculate 4 times 7

Arithmetic

Divide 17 by 5

Arithmetic

Find remainder of 17 divided by 5

Arithmetic

Calculate 2 to the power of 8

Arithmetic

Increment variable 'count' by 1

Arithmetic

Add 10 to variable 'total'

Arithmetic

Get first 3 characters of 'Hello'

Strings

Replace 'cat' with 'dog' in text

Strings

Replace all 'a' with 'o' in 'banana'

Strings

Convert 'hello' to uppercase

Strings

Convert 'WORLD' to lowercase

Strings

Remove .txt extension from 'file.txt'

Strings

Remove 'Hello ' from 'Hello World'

Strings

Calculate 5.5 divided by 2

Strings

Write if statement checking if x equals 5

Conditionals

Check if count equals 10

Conditionals

Check if score is NOT equal to 0

Conditionals

Check if age is greater than 18

Conditionals

Check if temp is less than 32

Conditionals

Check if name equals 'admin'

Conditionals

Check if variable 'input' is empty

Conditionals

Check if 'response' has a value

Conditionals

Check if config.txt exists

Conditionals

Check if logs directory exists

Conditionals

Check if script.sh is readable

Conditionals

Check if output.log is writable

Conditionals

Check if deploy.sh is executable

Conditionals

Check if x > 0 AND x < 100

Conditionals

Check if user is 'root' OR 'admin'

Conditionals

Loop through: apple banana cherry

Loops

Loop from 1 to 5 with counter i

Loops

Loop while count is less than 10

Loops

Loop until status equals 'done'

Loops

Exit the loop when error found

Loops

Skip to next iteration

Loops

Loop through all .txt files

Loops

Read each line of data.txt

Loops

Loop from 1 to 100

Loops

Loop from 1 to 10 using braces

Loops

Start a case statement for variable 'opt'

Case

Match pattern 'start' in case

Case

End a case clause

Case

Add default case for unknown options

Case

Close a case statement

Case

Define a function named 'greet'

Functions

Call the greet function

Functions

Access first argument in function

Functions

Call greet with 'John' argument

Functions

Return success status from function

Functions

Create local variable 'result' in function

Functions

Store get_date function output in 'today'

Functions

Check if last function succeeded

Functions

Define function with 'function' keyword

Functions

Call helper function from main

Functions

Store current date in variable

Advanced

Compare two command outputs

Advanced

Send multi-line text to cat

Advanced

Pass string directly to grep

Advanced

Clean up temp files on exit

Advanced

Enable exit-on-error mode

Advanced

Enable strict variable mode

Advanced

Enable pipeline error detection

Advanced

Print all elements of array 'servers'

Advanced

Create associative array 'config'

Advanced

Parse -v and -f options

DevOps

Create log function with timestamp

DevOps

Run 3 jobs in parallel then wait

DevOps

Create lock file for script

DevOps

Complete the DevOps bash setup header

DevOps