Learn Bash Scripting: A Beginner's Guide

                                
#!/bin/bash
# If the script is run as: ./saycolors.sh red green blue
# This will output the first argument: red
echo $1
# This will output the second argument: green
echo $2
# This will output the third argument: blue
echo $3

                              

                                
#!/bin/bash
greeting="Hello"
echo $greeting  # Outputs: Hello

                              

                                
#!/bin/bash
# Prompting the user to press Enter
echo "Press Enter to continue"
read 
# Prompting the user to enter their name
read -p "Enter your name: " name
echo "Hello, $name!"

                              

                                
#!/bin/bash
# The shebang tells the OS to use bash for running the script

echo "This script is using Bash!"

                              

                                
#!/bin/bash
# Creating an alias for a script with an argument
echo 'alias saygreen="./saycolors.sh green"' >> ~/.bashrc
# Reload the bashrc to apply the alias
source ~/.bashrc

                              

                                
#!/bin/bash
word1="Hello"
word2="Hello"
word3="hello"

if [ "$word1" == "$word2" ]; then
  echo "Strings are equal"
fi

if [ "$word1" != "$word3" ]; then
  echo "Strings are not equal"
fi

                              

                                
#!/bin/bash
# A simple Bash script to print a message
echo "Hello, this is a Bash script!"