Adding Arrays

Addition Operations

break

case statement

Command Substitutions

continue

decimal

Deleting Arrays

Deleting substring

elif staement

Extracting substring

for loop list/range

for loops C-style

if ... else

loop an array

nested if statement

Passing one Argument to a

power

read

remainder

Replacing substring

Simple arrays

Special bash variables

substring

until loop

Upper Lower case

Variables & Data types

while loop

#!/bin/bash

# if [ condition ]; then
# your code
# else
# your code
# fi

if [ $(whoami) = 'root' ]; then
echo "You are root"
else
echo 'You are not root"
fi