#!/bin/sh  
for file in "$@"  do         
if file $file | grep "ASCII text, with CRLF"; then              
echo "converting $file"              
dos2unix $file     
fi    
done

Checking stage 3 
for file in "$@" 
do 
if file $file | grep "ASCII text, with CRLF"; then 
echo "converting $file" 
dos2unix $file 
fi 
done 
+ file aardvark.cpp 
+ grep ASCII text, with CRLF 
+ echo converting aardvark.cpp 
+ dos2unix aardvark.cpp dos2unix: converting file aardvark.cpp to Unix format ... 
+ + grepfile ASCII text, with CRLF  
bongo.dat 
+ + grep ASCII text, with CRLF 
file cat.dog.bak  

Failed when running: ./asciiFix.sh 'aardvark.cpp' 'bongo.dat' 'cat.dog.bak'