Creating pull request to review and merge the changes until Day_4 changes as a part of BashBlaze-7-Days-of-Bash-Scripting-Challenge

Challenges/Day_1/Day_1_Basics_Solution.sh

@@ -0,0 +1,27 @@
+##############################################################################################
+#!/bin/bash                                                                                  #
+##############################################################################################
+# Author : Gurudeo ray                                                                       #
+##############################################################################################
+#                                                                                            #
+# Usage : Created this script to full fill Day 1 Bashblaze challenge                         #
+#                                                                                            #
+##############################################################################################
+
+echo "Created this script to full fill Day 1 Bashblaze challenge"
+
+#Defining 2 integer variable and assigning them a value
+num1=2
+num2=5
+
+#Printing sum of num1 and num2
+echo "Sum of $num1 and $num2 = $( expr $num1 + $num2 )"
+
+#Built-in variables
+echo $HOSTNAME
+echo $BASH
+echo $#
+echo $HOME
+
+#finding file name in home directoy and it's subdirectory with .jpg extension
+find /home -name "*.jpg"

Challenges/Day_1_Basics.md → Challenges/Day_1/day1_basics.md

@@ -31,3 +31,4 @@ Create a single bash script that completes all the Tasks mentioned above. Add co
 To submit your entry, create a GitHub repository and commit your script to it.
 
 Good luck with Day 1 of the Bash Scripting Challenge! Tomorrow, the difficulty will increase as we move on to more advanced concepts. Happy scripting!
+

Challenges/Day_2/Day_2_Challenge.md

@@ -0,0 +1,93 @@
+Day 2 Bash Scripting Challenge - Interactive File and Directory Explorer
+Welcome to Day 2 of the Bash Scripting Challenge! In this challenge, you will create a bash script that serves as an interactive file and directory explorer. The script will allow you to explore the files and directories in the current path and provide a character counting feature for the user's input.
+
+Challenge Description
+The script will have two main parts:
+
+Part 1: File and Directory Exploration
+Upon execution without any command-line arguments, the script will display a welcome message and list all the files and directories in the current path.
+For each file and directory, the script will print its name and size in human-readable format (e.g., KB, MB, GB). This information will be obtained using the ls command with appropriate options.
+The list of files and directories will be displayed in a loop until the user decides to exit the explorer.
+Part 2: Character Counting
+After displaying the file and directory list, the script will prompt the user to enter a line of text.
+The script will read the user's input until an empty string is entered (i.e., the user presses Enter without any text).
+For each line of text entered by the user, the script will count the number of characters in that line.
+The character count for each line entered by the user will be displayed.
+Example Interaction
+$ ./explorer.sh
+Welcome to the Interactive File and Directory Explorer!
+
+Files and Directories in the Current Path:
+- file1.txt (100 KB)
+- dir1 (2 MB)
+- script.sh (3 KB)
+...
+
+Enter a line of text (Press Enter without text to exit): Hello, this is a sample line.
+Character Count: 27
+
+Enter a line of text (Press Enter without text to exit): Another line to count.
+Character Count: 25
+
+Enter a line of text (Press Enter without text to exit):
+Exiting the Interactive Explorer. Goodbye!
+Submission Instructions
+Create a bash script named explorer.sh that implements the Interactive File and Directory Explorer as described in the challenge.
+Add comments in the script to explain the purpose and logic of each part.
+Submit your entry by pushing the script to your GitHub repository.
+Congratulations! You've completed Day 2 of the Bash Scripting Challenge. The challenge focuses on Command-Line Argument Parsing and Loops to build an interactive script that explores files, directories, and performs character counting. Happy scripting and exploring!
+
+
+================================================================================
+
+Directory Backup with Rotation
+This is another challenge for Day 2 of the Bash Scripting Challenge! In this challenge, you will create a bash script that performs a backup of a specified directory and implements a rotation mechanism to manage backups.
+
+Challenge Description
+Your task is to create a bash script that takes a directory path as a command-line argument and performs a backup of the directory. The script should create timestamped backup folders and copy all the files from the specified directory into the backup folder.
+
+Additionally, the script should implement a rotation mechanism to keep only the last 3 backups. This means that if there are more than 3 backup folders, the oldest backup folders should be removed to ensure only the most recent backups are retained.
+
+The script will create a timestamped backup folder inside the specified directory and copy all the files into it. It will also check for existing backup folders and remove the oldest backups to keep only the last 3 backups.
+
+Example Usage
+Assume the script is named backup_with_rotation.sh. Here's an example of how it will look, also assuming the script is executed with the following commands on different dates:
+
+First Execution (2023-07-30):
+$ ./backup_with_rotation.sh /home/user/documents
+Output:
+
+Backup created: /home/user/documents/backup_2023-07-30_12-30-45
+Backup created: /home/user/documents/backup_2023-07-30_15-20-10
+Backup created: /home/user/documents/backup_2023-07-30_18-40-55
+After this execution, the /home/user/documents directory will contain the following items:
+
+backup_2023-07-30_12-30-45
+backup_2023-07-30_15-20-10
+backup_2023-07-30_18-40-55
+file1.txt
+file2.txt
+...
+Second Execution (2023-08-01):
+$ ./backup_with_rotation.sh /home/user/documents
+Output:
+
+Backup created: /home/user/documents/backup_2023-08-01_09-15-30
+After this execution, the /home/user/documents directory will contain the following items:
+
+backup_2023-07-30_15-20-10
+backup_2023-07-30_18-40-55
+backup_2023-08-01_09-15-30
+file1.txt
+file2.txt
+...
+In this example, the script creates backup folders with timestamped names and retains only the last 3 backups while removing the older backups.
+
+Submission Instructions
+Create a bash script named backup_with_rotation.sh that implements the Directory Backup with Rotation as described in the challenge.
+
+Add comments in the script to explain the purpose and logic of each part.
+
+Submit your entry by pushing the script to your GitHub repository.
+
+Congratulations on completing Day 2 of the Bash Scripting Challenge! The challenge focuses on creating a backup script with rotation capabilities to manage multiple backups efficiently. Happy scripting and backing up!

Challenges/Day_2/backup_with_rotation.sh

@@ -0,0 +1,59 @@
+##############################################################################################
+#!/bin/bash                                                                                  #
+##############################################################################################
+# Author : Gurudeo ray                                                                       #
+##############################################################################################
+#                                                                                            #
+# About : Developed a shell script to backup resources, present in the directory provided    #
+#         by a user as a input.                                                              #
+#                                                                                            #
+#                                                                                            #
+##############################################################################################
+#                                                                                            #
+# Execution : ./<script-name> <location to take backup>                                      #
+#                                                                                            #
+# Example   :  ./backup_with_rotation.sh /home/guru/Documents/                               #
+#                                                                                            #
+##############################################################################################
+
+# Taking directory input from user
+backup_input_dir=$1
+
+# Latest timestamp
+time_stamp="$(date +'%Y-%m-%d_%H-%M-%S')"
+
+# Locatin to store all the backups
+backup_storage_location=$backup_input_dir"/backup_"$time_stamp
+
+# Backup file name with latest timestamp 
+backup_file_name=backup_$time_stamp"".tar.gz
+
+# Creating backup storage location (storage directory)
+mkdir -p $backup_storage_location
+
+# Taking backup and storing at the backup storage location
+tar -cvf ${backup_storage_location}/${backup_file_name} ${backup_input_dir} 2>/dev/null 1>/dev/null
+if [ $? -eq 0 ]; then
+    echo "Backup created: $backup_storage_location"
+else
+    echo "Please enter valid directory name."
+fi
+
+# Steps to keep latest 3 backups and delete old backups
+for backup_list_item in  $(ls -t $backup_input_dir | tail -n +4 | grep backup)
+do
+    rm -r $backup_input_dir/$backup_list_item
+done
+
+
+
+# Solution 1 (If we have more thank 1 extra backup except latest 3)
+#solution 2 (if we have only one extra backup except latest 3)
+# rm -r $backup_input_dir/$(ls -t $backup_input_dir | awk 'NR>3' | grep backup)
+
+#solution 3 (if we have only one extra backup except latest 3)
+# rm -r $backup_input_dir/$(ls -t $backup_input_dir | tail -n +4 | grep backup)
+
+
+#Dont forget to Give your script executable permission
+#chmod +x backup_with_rotation.sh

Challenges/Day_2/explorer.sh

@@ -0,0 +1,32 @@
+##############################################################################################
+#!/bin/bash                                                                                  #
+##############################################################################################
+# Author : Gurudeo ray                                                                       #
+##############################################################################################
+#                                                                                            #
+# About : Developed a script to full fill Day 2 Bashblaze challenge  (Interactive File and   # 
+#         Directory Explorer)                                                                #
+#                                                                                            #
+##############################################################################################
+
+echo "Welcome to Day2 chalenge"
+
+#Printing all the file and directroies with their size in human redable format
+echo "Files and directories in current path: "
+ls -lh | awk -F " " '{ print $9 " ("$5")"}'
+
+isCondition=true
+
+#Creating interactive while loop to count characters provided by user as a input
+while( $isCondition ); do 
+    count=0
+    read -p "Enter a line or characters (Press enter without any input to exit): " inputstring
+    if [[ $inputstring != "" ]];then
+        for(( i=0; i<${#inputstring}; i++ )); do
+            $(( count++ )) 2>/dev/null
+        done
+        echo "Character count : $count"
+    else
+        exit;
+    fi 
+done

Challenges/Day_3/day_3_usermgm.md

@@ -0,0 +1,57 @@
+## Challenge: User Account Management
+
+In this challenge, you will create a bash script that provides options for managing user accounts on the system. The script should allow users to perform various user account-related tasks based on command-line arguments.
+
+### Part 1: Account Creation
+
+1. Implement an option `-c` or `--create` that allows the script to create a new user account. The script should prompt the user to enter the new username and password.
+
+2. Ensure that the script checks whether the username is available before creating the account. If the username already exists, display an appropriate message and exit gracefully.
+
+3. After creating the account, display a success message with the newly created username.
+
+### Part 2: Account Deletion
+
+1. Implement an option `-d` or `--delete` that allows the script to delete an existing user account. The script should prompt the user to enter the username of the account to be deleted.
+
+2. Ensure that the script checks whether the username exists before attempting to delete the account. If the username does not exist, display an appropriate message and exit gracefully.
+
+3. After successfully deleting the account, display a confirmation message with the deleted username.
+
+### Part 3: Password Reset
+
+1. Implement an option `-r` or `--reset` that allows the script to reset the password of an existing user account. The script should prompt the user to enter the username and the new password.
+
+2. Ensure that the script checks whether the username exists before attempting to reset the password. If the username does not exist, display an appropriate message and exit gracefully.
+
+3. After resetting the password, display a success message with the username and the updated password.
+
+### Part 4: List User Accounts
+
+1. Implement an option `-l` or `--list` that allows the script to list all user accounts on the system. The script should display the usernames and their corresponding user IDs (UID).
+
+### Part 5: Help and Usage Information
+
+1. Implement an option `-h` or `--help` that displays usage information and the available command-line options for the script.
+
+### Bonus Points (Optional)
+
+If you want to challenge yourself further, you can add additional features to the script, such as:
+
+- Displaying more detailed information about user accounts (e.g., home directory, shell, etc.).
+- Allowing the modification of user account properties (e.g., username, user ID, etc.).
+
+Remember to handle errors gracefully, provide appropriate user prompts, and add comments to explain the logic and purpose of each part of the script.
+
+## [Example Interaction: User Account Management Script](./example_interaction_with_usr_acc_mgmt.md)
+
+
+## Submission Instructions
+
+Create a bash script named `user_management.sh` that implements the User Account Management as described in the challenge.
+
+Add comments in the script to explain the purpose and logic of each part.
+
+Submit your entry by pushing the script to your GitHub repository.
+
+Good luck with the User Account Management challenge! This challenge will test your ability to interact with user input, manage user accounts, and perform administrative tasks using bash scripting. Happy scripting and managing user accounts!

Challenges/Day_3/example_interaction_with_usr_acc_mgmt.md

@@ -0,0 +1,45 @@
+# Here's an example how the interaction with the User Account Management script might look:
+
+> Assume the script is named user_management.sh. Let's go through different scenarios:
+
+![1](https://github.com/prajwalpd7/BashBlaze-7-Days-of-Bash-Scripting-Challenge/assets/71492927/653bc7fb-ac50-4089-87fa-a6c3f616bc48)
+
+
+### Scenario 1: Create a New User
+
+![2](https://github.com/prajwalpd7/BashBlaze-7-Days-of-Bash-Scripting-Challenge/assets/71492927/b472a087-ae23-4d7b-bf4f-95ceca45f6e4)
+
+
+### Scenario 2: Create a User with an Existing Username
+
+![3](https://github.com/prajwalpd7/BashBlaze-7-Days-of-Bash-Scripting-Challenge/assets/71492927/fc664ca3-6c81-4370-b968-f66a07adf9af)
+
+
+### Scenario 3: Delete a User Account
+
+![4](https://github.com/prajwalpd7/BashBlaze-7-Days-of-Bash-Scripting-Challenge/assets/71492927/10fce4ff-894a-4385-8a17-dbf8991fba8c)
+
+
+### Scenario 4: Delete a Non-Existing User Account
+
+![5](https://github.com/prajwalpd7/BashBlaze-7-Days-of-Bash-Scripting-Challenge/assets/71492927/55d1c5ea-6ddb-4b81-9e4c-579b34961a0a)
+
+
+### Scenario 5: Reset Password
+
+![6](https://github.com/prajwalpd7/BashBlaze-7-Days-of-Bash-Scripting-Challenge/assets/71492927/d2177cbe-3896-40d8-b5ad-3d7b77cb4411)
+
+
+### Scenario 6: List All User Accounts
+
+![7](https://github.com/prajwalpd7/BashBlaze-7-Days-of-Bash-Scripting-Challenge/assets/71492927/4fc84ea5-ca2d-4438-ad7f-a47980edb3f9)
+
+
+### Scenario 7: Help and Usage Information
+
+![8](https://github.com/prajwalpd7/BashBlaze-7-Days-of-Bash-Scripting-Challenge/assets/71492927/7818c35c-29b6-44d4-ae63-c12918bdc806)
+
+
+Please note that the actual output might differ based on your implementation of the script. Also, ensure that you handle different edge cases and error scenarios gracefully to make the script user-friendly and robust.
+
+This Markdown file demonstrates the interaction with the User Account Management script, showcasing various scenarios and expected outputs. The examples provide a clear understanding of how the script works and how users can interact with it.