appending two strings

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# 1  
appending two strings


I have a small doubt. Here is the code snippet for which the output that I'm getting are a bit surprising.

echo "arg passed by user is:${arg_1}"
mapping=`grep ${arg_1}= testing.conf | awk -F"=" '{print $2}'`
echo "mapping is $mapping"
echo "key:${key}~"
param_file=`grep ${key}= testing.conf | awk -F"=" '{print $2}'`
echo "param file is:${param_file}"


Now while running the shell script as ./ ram I am getting the following output
arg passed by user is:ram
mapping is 219
param file is:

The lines in bold in the output are quite ambiguous.
The desired output should be

arg passed by user is:ram
mapping is 219
param file is:/home/testDir

Could anyone please help me in finding where the bug is in the script?
# 2  
Your code works for me in both ksh and bash. Check for a hidden character in testing.conf.
# 3  
Yep. Works fine for me too.
# 4  
Here goes the data in testing.conf

[home@27]$ sed -n l testing.conf

any suggestions???
# 5  
Originally Posted by badrimohanty
any suggestions???
Yes -

$ perl -pi -e 's/\r//g' testing.conf

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