Trying to script a simple command line tool for ingesting media to a target location following a structured naming convention.

It's functional in its current state but I'd like to know if there are things to improve.

!/usr/local/bin/bash

make target directory for transfer

make_directory()

 echo -e "nnFollow the prompt to create a project directory.nn"
 sleep .5

 while [[ -z "$target_directory" ]]
 do
 echo -e "Path of target directory?"
 read target_directory
 done

 while [[ -z "$brand" ]]
 do
 echo -e "nBrand Prefix?"
 read brand
 done

 while [[ -z "$project" ]]
 do
 echo -e "nProject Name?"
 read project
 done

 while [[ -z "$media_type" ]]
 do
 echo -e "nMedia Type?"
 read media_type
 done

 while [[ -z "$location" ]]
 do
 echo -e "nLocation?"
 read location
 done

 while [[ -z "$employee" ]]
 do
 echo -e "nEmployee?"
 read employee
 done

 path=$target_directory/$(date +'%Y%m%d')_$brand_$project_$media_type_$location_$employee

 echo -e "nCreating directory: $pathnn"

 mkdir -p "$path"

construct rsync command

construct_rsync()

 echo -e "nnFollow the prompt to construct the rsync command.nn"
 while [[ -z "$source_path" ]]
 do
 echo -e "Path to source media?"
 read source_path
 done

 if [[ "$option" == "2" ]]; then
 while [[ -z "$target_directory" ]]
 do
 echo -e "Target directory?"
 read destination_path
 done
 path=$target_directory
 fi

 while true;
 do
 read -p "Additional rsync options? [y/n] " rsync_add
 case $rsync_add in
 [Yy]* )
 echo -e "nEnter additional rsync parameters:"
 read rsync_options
 break;;
 [Nn]* )
 break;;
 *) echo "Please enter y or no!"
 esac
 done

 echo -e "nConstructing rsync command...n"
 sleep .5
 echo -e "Running rsync command:n
 rsync n
 -r n
 --info=progress2 n
 --log-file=$path/$(date +'%Y%m%d')_transfer_log.txt n
 $rsync_options n
 $source_path/ n
 $path n"

 rsync -r --info=progress2 --log-file="$path/$(date +'%Y%m%d')_transfer_log.txt" $rsync_options "$source_path/" "$path"

log exit code of rsync

log()

 echo -e "nCreating error log..."
 echo $? > "$path/error_log.txt"

 sleep .5

 if [[ "$?" == "0" ]]; then
 echo -e "nTransfer complete!"
 elif [[ "$?" != "0" ]]; then
 echo -e "nError in transfer! Please refer to error_log.txt!"
 fi

read user input and run appropriate functions

while true
do
read -p "Enter [1] to start an ingest or [2] to complete a partial ingest. " option

 case $option in

 1 )
 make_directory
 sleep .5
 construct_rsync
 sleep .5
 log
 break;;
 2 )
 construct_rsync
 sleep .5
 log
 break;;
 * )
 echo "Please enter a valid option!";;
 esac

done