Bash loop to search file

In the bash when the user inputs an id to search for the bash currently closes, and if a match is found outputs a new file (match.txt). Is it possible to have not close the bash but rather, on the screen "searching for match" and if a match is found "match found in line.." is displayed and written to match.txt else "no match found" is displayed on the screen and no file is written. Thank you :).

The code below downloads a getCSV file then the user enters an id and that input is used to search the getCSV file. Currently, the last part is not working. I have added a loop and modified so other parts of the code with no luck.

#!/bin/bash

printf "establishing connection and downloading file, please wait"
cd 'C:\Users\cmccabe\Desktop\wget'
curl -# -o getCSV.txt http://xxx.xx.xxx.xxx/data/getCSV.csv
   
	   
 printf "Download complete, what is the id of the NGS patient: "; read id
	[ -z "$id" ] && printf "\n No ID supplied. Leaving match function." && sleep 2 && exit 1
  	
printf "searching, please wait" 
result=`grep -n "${id}" getCSV.txt`
while read -r line
 do
if [ -n "$result" ]; then
   echo "match found in line $result" >> match.txt
else
  echo "no match found"
 done
fi 

get rid of everything from while read -r line down and try something simple like :

if  grep $id getCSV.txt
then
   echo "match found in line $result" | tee -a  match.txt
else
  echo "no match found"
fi

@cmccabe, Any specific reason to create a new thread ? If its similar problem, please continue here

You have received some of the nice replies and I guess few questions have been asked to you.
Creating new thread will lead to revisit the same problem and wasting of everyone's time.
Thanks.