Shell script — weird behaviour after concatenating string with variables

Question

I am reading a .properties file from my shell script. I wanted to read some value for some key and after that want to append it in between some string but the output is weird.

#!/bin/bash
# Script used to read Property File
FILE_NAME="Test.properties"
prop_value=$(cat ${FILE_NAME} | grep Address)
echo "ABC${prop_value}DEF"

my Test.properties is like this

Name=Pravin
Age=25
Address=Mumbai
asd=asd

After executing this script I am expecting

ABCAddress=MumbaiDEF 

but I am getting output like

DEFAddress=Mumbai 

What would be the problem here?

If I define any variable in a script it works, but when I read it from file using command expansion it doesn't work.

Answer 1

To trim carriage returns from a variable on expansion, you can use ${varname%$'\r'}. Thus:

echo "ABC${prop_value%$'\r'}DEF"

Better would be to save your properties file as a native Unix text file, which contains no carriage returns at all.