1. Interactive File and Directory Explorer

• Created a bash script named explorer.sh that implements the Interactive File and Directory Explorer as described in the challenge.

• Added comments in the script to explain the purpose and logic of each part.

• Submit my entry by pushing the script to my GitHub repository.

• https://github.com/raygurudeo/BashBlaze-7-Days-of-Bash-Scripting-Challenge/blob/main/Challenges/explorer.sh

##############################################################################################
#!/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

2. Directory Backup with Rotation

• created a bash script that takes a directory path as a command-line argument and performs a backup of the directory. The script will create a timestamped backup folder and copy all the files from the specified directory into the backup folder.

• Additionally, we have implemented 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 will be removed to ensure only the most recent backups are retained.

  %[github.com/raygurudeo/BashBlaze-7-Days-of-B..

    ##############################################################################################
    #!/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/                               #
    #                                                                                            #
    ##############################################################################################
  
    # Check if user has executed script correctly or not ?
    if [ $# -eq 1 ]; then
  
        # Taking directory input from user
        backup_input_dir=$1
  
        # Checking if user has entered correct location and Creating backup storage location (storage directory)
        if [ -d $backup_input_dir ]; then
  
            # Latest timestamp
            time_stamp="$(date +'%Y-%m-%d_%H-%M-%S')"
  
            # Locatin to store all the backups
            backup_file_path=`realpath $backup_input_dir`
            backup_storage_location=$backup_file_path"/backup_"$time_stamp
  
            # Backup file name with latest timestamp
            backup_file_name=backup_$time_stamp"".tar.gz
  
            mkdir -p $backup_storage_location
            echo "Backup storage location ( $backup_storage_location ) created successfully..."
  
            # 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: $backup_storage_location/$backup_file_name"
            else
                echo "Error: Failed to create a backup !!!"
                exit 1
            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
  
        else
            echo "Error: Entered location is not correct.!!"
        fi
  
    else
        echo "Error: Please execute script correctly as given in the execution section of the Script header."
        head -17 backup_with_rotation.sh
        exit 1
    fi
  
    exit 0