initail commit

1-introduction-to-bash/1.sh

@@ -1,38 +1,76 @@
 #!/bin/bash
 
-
-
 # Author: Samir M.
 # Date: 2024-02-29
-# Modified Date: 2024-02-29
-# Description: Introduction to Bash Scripting
+# Modified: 2024-02-29
+# Description: Comprehensive Bash Scripting Tutorial
 # Usage: ./1.sh
 
-
-# The shebang line is the first line of the script and tells the system what interpreter to use
-# In this case, we are using the bash interpreter
-
-
-# echo is a command that prints text to the terminal
-echo "Hello, World!"
-
-# printf is another command that prints text to the terminal
-printf "%s\n" "Hello, World!"
+# Introduction
+echo "Welcome to the Comprehensive Bash Scripting Tutorial!"
+echo "This script covers various Bash commands and scripting basics."
 
 # Print the current shell
-echo $SHELL
-
-# Print the home directory
-echo $HOME
-
-# Print the current working directory
-echo $PWD
-
-# Print the current user
-echo $USER
-
-# Print the current date and time
-echo $(date)
+echo -e "\n1. System Information:"
+echo "   Current Shell: $SHELL"
+echo "   Home Directory: $HOME"
+echo "   Current Working Directory: $PWD"
+echo "   Current User: $USER"
+echo "   Current Date and Time: $(date)"
+echo "   System PATH: $PATH"
+echo "   Hostname: $(hostname)"
+
+# File and Directory Operations
+# e flag is used to enable interpretation of backslash escapes
+echo -e "\n2. File and Directory Operations:"
+
+# Create a directory
+mkdir my_directory
+echo "   Created 'my_directory'"
+
+# Change to the directory
+cd my_directory
+echo "   Current Directory: $(pwd)"
+
+# Create a new file
+touch my_file.txt
+echo "   Created 'my_file.txt'"
+
+# Display file content
+echo -e "\n   Content of 'my_file.txt':"
+cat my_file.txt
+
+# Delete the file
+rm my_file.txt
+echo "   Deleted 'my_file.txt'"
+
+# Delete the directory
+cd ..
+rm -r my_directory
+echo "   Deleted 'my_directory'"
+
+# Process Information
+echo -e "\n3. Process Information:"
+# Display process information
+echo "   List of processes:"
+
+# ps aux command is used to display all the running processes
+ps aux
+
+# User Input
+echo -e "\n4. User Input:"
+
+# Prompt for user input
+read -p "Enter your name: " user_name
+
+echo "   Hello, $user_name! Welcome to Bash scripting."
+
+# Make the script executable
+# To calculate the permission, we use the following webiste: https://chmod-calculator.com/
+# chmod 744  1.sh
+
+# Execute the script
+# ./1.sh